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Finding the Fourth Proportional to 464,006.80, 696,010.20 and 425,515.60

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Solution

The fourth proportional to 464,006.80, 696,010.20 and 425,515.60 is: 638,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,006.80 : 696,010.20 = 425,515.60 : x
  2. Step 2: Convert to fraction form
    464,006.80/696,010.20 = 425,515.60/x
  3. Step 3: Cross multiply
    464,006.80x = 696,010.20 × 425,515.60
  4. Step 4: Simplify right side
    464,006.80x = 296,163,197,859.12
  5. Step 5: Solve for x
    x = 296,163,197,859.12/464,006.80
  6. Step 6: Final answer
    x = 638,273.40

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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.