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Finding the Fourth Proportional to 530,568.48, 732,186.40 and 288,853.92

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Solution

The fourth proportional to 530,568.48, 732,186.40 and 288,853.92 is: 398,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,568.48 : 732,186.40 = 288,853.92 : x
  2. Step 2: Convert to fraction form
    530,568.48/732,186.40 = 288,853.92/x
  3. Step 3: Cross multiply
    530,568.48x = 732,186.40 × 288,853.92
  4. Step 4: Simplify right side
    530,568.48x = 211,494,911,810.69
  5. Step 5: Solve for x
    x = 211,494,911,810.69/530,568.48
  6. Step 6: Final answer
    x = 398,619.44

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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.