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Finding the Fourth Proportional to 531,046.57, 732,835.00 and 289,330.87

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Solution

The fourth proportional to 531,046.57, 732,835.00 and 289,330.87 is: 399,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,046.57 : 732,835.00 = 289,330.87 : x
  2. Step 2: Convert to fraction form
    531,046.57/732,835.00 = 289,330.87/x
  3. Step 3: Cross multiply
    531,046.57x = 732,835.00 × 289,330.87
  4. Step 4: Simplify right side
    531,046.57x = 212,031,789,484.25
  5. Step 5: Solve for x
    x = 212,031,789,484.25/531,046.57
  6. Step 6: Final answer
    x = 399,271.55

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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.