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Finding the Fourth Proportional to 468,423.38, 646,424.34 and 253,565.22

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Solution

The fourth proportional to 468,423.38, 646,424.34 and 253,565.22 is: 349,920.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,423.38 : 646,424.34 = 253,565.22 : x
  2. Step 2: Convert to fraction form
    468,423.38/646,424.34 = 253,565.22/x
  3. Step 3: Cross multiply
    468,423.38x = 646,424.34 × 253,565.22
  4. Step 4: Simplify right side
    468,423.38x = 163,910,729,985.46
  5. Step 5: Solve for x
    x = 163,910,729,985.46/468,423.38
  6. Step 6: Final answer
    x = 349,920.04

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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.