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Finding the Fourth Proportional to 604,952.20, 907,428.30 and 339,231.70

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Solution

The fourth proportional to 604,952.20, 907,428.30 and 339,231.70 is: 508,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,952.20 : 907,428.30 = 339,231.70 : x
  2. Step 2: Convert to fraction form
    604,952.20/907,428.30 = 339,231.70/x
  3. Step 3: Cross multiply
    604,952.20x = 907,428.30 × 339,231.70
  4. Step 4: Simplify right side
    604,952.20x = 307,828,444,837.11
  5. Step 5: Solve for x
    x = 307,828,444,837.11/604,952.20
  6. Step 6: Final answer
    x = 508,847.55

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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.