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Finding the Fourth Proportional to 508,733.20, 763,099.80 and 153,710.20

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Solution

The fourth proportional to 508,733.20, 763,099.80 and 153,710.20 is: 230,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,733.20 : 763,099.80 = 153,710.20 : x
  2. Step 2: Convert to fraction form
    508,733.20/763,099.80 = 153,710.20/x
  3. Step 3: Cross multiply
    508,733.20x = 763,099.80 × 153,710.20
  4. Step 4: Simplify right side
    508,733.20x = 117,296,222,877.96
  5. Step 5: Solve for x
    x = 117,296,222,877.96/508,733.20
  6. Step 6: Final answer
    x = 230,565.30

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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.