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Finding the Fourth Proportional to 614,136.72, 847,510.38 and 356,063.70

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Solution

The fourth proportional to 614,136.72, 847,510.38 and 356,063.70 is: 491,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,136.72 : 847,510.38 = 356,063.70 : x
  2. Step 2: Convert to fraction form
    614,136.72/847,510.38 = 356,063.70/x
  3. Step 3: Cross multiply
    614,136.72x = 847,510.38 × 356,063.70
  4. Step 4: Simplify right side
    614,136.72x = 301,767,681,691.21
  5. Step 5: Solve for x
    x = 301,767,681,691.21/614,136.72
  6. Step 6: Final answer
    x = 491,368.90

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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.