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Finding the Fourth Proportional to 671,136.13, 926,168.01 and 369,330.13

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Solution

The fourth proportional to 671,136.13, 926,168.01 and 369,330.13 is: 509,675.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,136.13 : 926,168.01 = 369,330.13 : x
  2. Step 2: Convert to fraction form
    671,136.13/926,168.01 = 369,330.13/x
  3. Step 3: Cross multiply
    671,136.13x = 926,168.01 × 369,330.13
  4. Step 4: Simplify right side
    671,136.13x = 342,061,745,057.65
  5. Step 5: Solve for x
    x = 342,061,745,057.65/671,136.13
  6. Step 6: Final answer
    x = 509,675.66

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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.