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Finding the Fourth Proportional to 385,666.78, 532,220.16 and 234,763.78

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Solution

The fourth proportional to 385,666.78, 532,220.16 and 234,763.78 is: 323,974.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,666.78 : 532,220.16 = 234,763.78 : x
  2. Step 2: Convert to fraction form
    385,666.78/532,220.16 = 234,763.78/x
  3. Step 3: Cross multiply
    385,666.78x = 532,220.16 × 234,763.78
  4. Step 4: Simplify right side
    385,666.78x = 124,946,016,553.81
  5. Step 5: Solve for x
    x = 124,946,016,553.81/385,666.78
  6. Step 6: Final answer
    x = 323,974.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.