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Finding the Fourth Proportional to 6,438,553,657.70, 9,657,830,486.55 and 6,438,553,657.70

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Solution

The fourth proportional to 6,438,553,657.70, 9,657,830,486.55 and 6,438,553,657.70 is: 9,657,830,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,553,657.70 : 9,657,830,486.55 = 6,438,553,657.70 : x
  2. Step 2: Convert to fraction form
    6,438,553,657.70/9,657,830,486.55 = 6,438,553,657.70/x
  3. Step 3: Cross multiply
    6,438,553,657.70x = 9,657,830,486.55 × 6,438,553,657.70
  4. Step 4: Simplify right side
    6,438,553,657.70x = 62,182,459,804,623,069,184
  5. Step 5: Solve for x
    x = 62,182,459,804,623,069,184/6,438,553,657.70
  6. Step 6: Final answer
    x = 9,657,830,486.55

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Double scale
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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.