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Finding the Fourth Proportional to 530,636.66, 732,291.71 and 288,932.45

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Solution

The fourth proportional to 530,636.66, 732,291.71 and 288,932.45 is: 398,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,636.66 : 732,291.71 = 288,932.45 : x
  2. Step 2: Convert to fraction form
    530,636.66/732,291.71 = 288,932.45/x
  3. Step 3: Cross multiply
    530,636.66x = 732,291.71 × 288,932.45
  4. Step 4: Simplify right side
    530,636.66x = 211,582,832,778.87
  5. Step 5: Solve for x
    x = 211,582,832,778.87/530,636.66
  6. Step 6: Final answer
    x = 398,733.92

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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.