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Finding the Fourth Proportional to 530,469.01, 732,056.57 and 288,758.53

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Solution

The fourth proportional to 530,469.01, 732,056.57 and 288,758.53 is: 398,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,469.01 : 732,056.57 = 288,758.53 : x
  2. Step 2: Convert to fraction form
    530,469.01/732,056.57 = 288,758.53/x
  3. Step 3: Cross multiply
    530,469.01x = 732,056.57 × 288,758.53
  4. Step 4: Simplify right side
    530,469.01x = 211,387,579,030.04
  5. Step 5: Solve for x
    x = 211,387,579,030.04/530,469.01
  6. Step 6: Final answer
    x = 398,491.85

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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.