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Finding the Fourth Proportional to 614,335.69, 847,713.18 and 356,158.79

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Solution

The fourth proportional to 614,335.69, 847,713.18 and 356,158.79 is: 491,458.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,335.69 : 847,713.18 = 356,158.79 : x
  2. Step 2: Convert to fraction form
    614,335.69/847,713.18 = 356,158.79/x
  3. Step 3: Cross multiply
    614,335.69x = 847,713.18 × 356,158.79
  4. Step 4: Simplify right side
    614,335.69x = 301,920,498,728.41
  5. Step 5: Solve for x
    x = 301,920,498,728.41/614,335.69
  6. Step 6: Final answer
    x = 491,458.50

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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.