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Finding the Fourth Proportional to 457,193.76, 630,920.73 and 253,244.02

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Solution

The fourth proportional to 457,193.76, 630,920.73 and 253,244.02 is: 349,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,193.76 : 630,920.73 = 253,244.02 : x
  2. Step 2: Convert to fraction form
    457,193.76/630,920.73 = 253,244.02/x
  3. Step 3: Cross multiply
    457,193.76x = 630,920.73 × 253,244.02
  4. Step 4: Simplify right side
    457,193.76x = 159,776,897,545.71
  5. Step 5: Solve for x
    x = 159,776,897,545.71/457,193.76
  6. Step 6: Final answer
    x = 349,473.05

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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.