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Finding the Fourth Proportional to 284,654.72, 392,843.90 and 169,938.06

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Solution

The fourth proportional to 284,654.72, 392,843.90 and 169,938.06 is: 234,526.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,654.72 : 392,843.90 = 169,938.06 : x
  2. Step 2: Convert to fraction form
    284,654.72/392,843.90 = 169,938.06/x
  3. Step 3: Cross multiply
    284,654.72x = 392,843.90 × 169,938.06
  4. Step 4: Simplify right side
    284,654.72x = 66,759,130,248.83
  5. Step 5: Solve for x
    x = 66,759,130,248.83/284,654.72
  6. Step 6: Final answer
    x = 234,526.69

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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.