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Finding the Fourth Proportional to 623,713.20, 935,569.80 and 224,415.60

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Solution

The fourth proportional to 623,713.20, 935,569.80 and 224,415.60 is: 336,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,713.20 : 935,569.80 = 224,415.60 : x
  2. Step 2: Convert to fraction form
    623,713.20/935,569.80 = 224,415.60/x
  3. Step 3: Cross multiply
    623,713.20x = 935,569.80 × 224,415.60
  4. Step 4: Simplify right side
    623,713.20x = 209,956,458,008.88
  5. Step 5: Solve for x
    x = 209,956,458,008.88/623,713.20
  6. Step 6: Final answer
    x = 336,623.40

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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.