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Finding the Fourth Proportional to 867,274.63, 1,300,356.99 and 417,098.90

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Solution

The fourth proportional to 867,274.63, 1,300,356.99 and 417,098.90 is: 625,381.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,274.63 : 1,300,356.99 = 417,098.90 : x
  2. Step 2: Convert to fraction form
    867,274.63/1,300,356.99 = 417,098.90/x
  3. Step 3: Cross multiply
    867,274.63x = 1,300,356.99 × 417,098.90
  4. Step 4: Simplify right side
    867,274.63x = 542,377,473,387.20
  5. Step 5: Solve for x
    x = 542,377,473,387.20/867,274.63
  6. Step 6: Final answer
    x = 625,381.46

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Double scale
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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.