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Finding the Fourth Proportional to 577,030.20, 865,545.30 and 257,181.45

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Solution

The fourth proportional to 577,030.20, 865,545.30 and 257,181.45 is: 385,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,030.20 : 865,545.30 = 257,181.45 : x
  2. Step 2: Convert to fraction form
    577,030.20/865,545.30 = 257,181.45/x
  3. Step 3: Cross multiply
    577,030.20x = 865,545.30 × 257,181.45
  4. Step 4: Simplify right side
    577,030.20x = 222,602,195,294.69
  5. Step 5: Solve for x
    x = 222,602,195,294.69/577,030.20
  6. Step 6: Final answer
    x = 385,772.18

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Similar ratio
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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.