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Finding the Fourth Proportional to 431,139.40, 594,990.74 and 240,152.74

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Solution

The fourth proportional to 431,139.40, 594,990.74 and 240,152.74 is: 331,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,139.40 : 594,990.74 = 240,152.74 : x
  2. Step 2: Convert to fraction form
    431,139.40/594,990.74 = 240,152.74/x
  3. Step 3: Cross multiply
    431,139.40x = 594,990.74 × 240,152.74
  4. Step 4: Simplify right side
    431,139.40x = 142,888,652,309.91
  5. Step 5: Solve for x
    x = 142,888,652,309.91/431,139.40
  6. Step 6: Final answer
    x = 331,421.01

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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.