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Finding the Fourth Proportional to 6,573,326.70, 9,859,990.05 and 6,478,848.30

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Solution

The fourth proportional to 6,573,326.70, 9,859,990.05 and 6,478,848.30 is: 9,718,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,573,326.70 : 9,859,990.05 = 6,478,848.30 : x
  2. Step 2: Convert to fraction form
    6,573,326.70/9,859,990.05 = 6,478,848.30/x
  3. Step 3: Cross multiply
    6,573,326.70x = 9,859,990.05 × 6,478,848.30
  4. Step 4: Simplify right side
    6,573,326.70x = 63,881,379,773,459.42
  5. Step 5: Solve for x
    x = 63,881,379,773,459.42/6,573,326.70
  6. Step 6: Final answer
    x = 9,718,272.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.