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Finding the Fourth Proportional to 445,641.28, 614,985.98 and 254,654.22

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Solution

The fourth proportional to 445,641.28, 614,985.98 and 254,654.22 is: 351,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,641.28 : 614,985.98 = 254,654.22 : x
  2. Step 2: Convert to fraction form
    445,641.28/614,985.98 = 254,654.22/x
  3. Step 3: Cross multiply
    445,641.28x = 614,985.98 × 254,654.22
  4. Step 4: Simplify right side
    445,641.28x = 156,608,775,047.84
  5. Step 5: Solve for x
    x = 156,608,775,047.84/445,641.28
  6. Step 6: Final answer
    x = 351,423.40

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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.