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Finding the Fourth Proportional to 438,113.52, 604,657.17 and 256,870.08

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Solution

The fourth proportional to 438,113.52, 604,657.17 and 256,870.08 is: 354,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,113.52 : 604,657.17 = 256,870.08 : x
  2. Step 2: Convert to fraction form
    438,113.52/604,657.17 = 256,870.08/x
  3. Step 3: Cross multiply
    438,113.52x = 604,657.17 × 256,870.08
  4. Step 4: Simplify right side
    438,113.52x = 155,318,335,630.47
  5. Step 5: Solve for x
    x = 155,318,335,630.47/438,113.52
  6. Step 6: Final answer
    x = 354,516.19

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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.