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Finding the Fourth Proportional to 453,335.60, 680,003.40 and 272,932.40

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Solution

The fourth proportional to 453,335.60, 680,003.40 and 272,932.40 is: 409,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,335.60 : 680,003.40 = 272,932.40 : x
  2. Step 2: Convert to fraction form
    453,335.60/680,003.40 = 272,932.40/x
  3. Step 3: Cross multiply
    453,335.60x = 680,003.40 × 272,932.40
  4. Step 4: Simplify right side
    453,335.60x = 185,594,959,970.16
  5. Step 5: Solve for x
    x = 185,594,959,970.16/453,335.60
  6. Step 6: Final answer
    x = 409,398.60

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1.5x scale

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.