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Finding the Fourth Proportional to 482,897.90, 724,346.85 and 283,313.90

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Solution

The fourth proportional to 482,897.90, 724,346.85 and 283,313.90 is: 424,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,897.90 : 724,346.85 = 283,313.90 : x
  2. Step 2: Convert to fraction form
    482,897.90/724,346.85 = 283,313.90/x
  3. Step 3: Cross multiply
    482,897.90x = 724,346.85 × 283,313.90
  4. Step 4: Simplify right side
    482,897.90x = 205,217,531,026.22
  5. Step 5: Solve for x
    x = 205,217,531,026.22/482,897.90
  6. Step 6: Final answer
    x = 424,970.85

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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.