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Finding the Fourth Proportional to 614,358.38, 847,818.48 and 342,443.49

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Solution

The fourth proportional to 614,358.38, 847,818.48 and 342,443.49 is: 472,574.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,358.38 : 847,818.48 = 342,443.49 : x
  2. Step 2: Convert to fraction form
    614,358.38/847,818.48 = 342,443.49/x
  3. Step 3: Cross multiply
    614,358.38x = 847,818.48 × 342,443.49
  4. Step 4: Simplify right side
    614,358.38x = 290,329,919,177.70
  5. Step 5: Solve for x
    x = 290,329,919,177.70/614,358.38
  6. Step 6: Final answer
    x = 472,574.20

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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.