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Finding the Fourth Proportional to 614,343.30, 847,690.97 and 342,351.59

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Solution

The fourth proportional to 614,343.30, 847,690.97 and 342,351.59 is: 472,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,343.30 : 847,690.97 = 342,351.59 : x
  2. Step 2: Convert to fraction form
    614,343.30/847,690.97 = 342,351.59/x
  3. Step 3: Cross multiply
    614,343.30x = 847,690.97 × 342,351.59
  4. Step 4: Simplify right side
    614,343.30x = 290,208,345,457.93
  5. Step 5: Solve for x
    x = 290,208,345,457.93/614,343.30
  6. Step 6: Final answer
    x = 472,387.91

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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.