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Finding the Fourth Proportional to 530,718.96, 732,392.25 and 289,001.46

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Solution

The fourth proportional to 530,718.96, 732,392.25 and 289,001.46 is: 398,822.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,718.96 : 732,392.25 = 289,001.46 : x
  2. Step 2: Convert to fraction form
    530,718.96/732,392.25 = 289,001.46/x
  3. Step 3: Cross multiply
    530,718.96x = 732,392.25 × 289,001.46
  4. Step 4: Simplify right side
    530,718.96x = 211,662,429,542.69
  5. Step 5: Solve for x
    x = 211,662,429,542.69/530,718.96
  6. Step 6: Final answer
    x = 398,822.06

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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.