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Finding the Fourth Proportional to 398,406.20, 597,714.90 and 173,670.20

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Solution

The fourth proportional to 398,406.20, 597,714.90 and 173,670.20 is: 260,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,406.20 : 597,714.90 = 173,670.20 : x
  2. Step 2: Convert to fraction form
    398,406.20/597,714.90 = 173,670.20/x
  3. Step 3: Cross multiply
    398,406.20x = 597,714.90 × 173,670.20
  4. Step 4: Simplify right side
    398,406.20x = 103,805,266,225.98
  5. Step 5: Solve for x
    x = 103,805,266,225.98/398,406.20
  6. Step 6: Final answer
    x = 260,551.33

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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.