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Finding the Fourth Proportional to 531,251.74, 733,136.47 and 289,547.57

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Solution

The fourth proportional to 531,251.74, 733,136.47 and 289,547.57 is: 399,580.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,251.74 : 733,136.47 = 289,547.57 : x
  2. Step 2: Convert to fraction form
    531,251.74/733,136.47 = 289,547.57/x
  3. Step 3: Cross multiply
    531,251.74x = 733,136.47 × 289,547.57
  4. Step 4: Simplify right side
    531,251.74x = 212,277,884,475.85
  5. Step 5: Solve for x
    x = 212,277,884,475.85/531,251.74
  6. Step 6: Final answer
    x = 399,580.59

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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.