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Finding the Fourth Proportional to 354,699.40, 532,049.10 and 291,713.80

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Solution

The fourth proportional to 354,699.40, 532,049.10 and 291,713.80 is: 437,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,699.40 : 532,049.10 = 291,713.80 : x
  2. Step 2: Convert to fraction form
    354,699.40/532,049.10 = 291,713.80/x
  3. Step 3: Cross multiply
    354,699.40x = 532,049.10 × 291,713.80
  4. Step 4: Simplify right side
    354,699.40x = 155,206,064,747.58
  5. Step 5: Solve for x
    x = 155,206,064,747.58/354,699.40
  6. Step 6: Final answer
    x = 437,570.70

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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.