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Finding the Fourth Proportional to 530,671.25, 732,323.20 and 288,953.24

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Solution

The fourth proportional to 530,671.25, 732,323.20 and 288,953.24 is: 398,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,671.25 : 732,323.20 = 288,953.24 : x
  2. Step 2: Convert to fraction form
    530,671.25/732,323.20 = 288,953.24/x
  3. Step 3: Cross multiply
    530,671.25x = 732,323.20 × 288,953.24
  4. Step 4: Simplify right side
    530,671.25x = 211,607,163,559.17
  5. Step 5: Solve for x
    x = 211,607,163,559.17/530,671.25
  6. Step 6: Final answer
    x = 398,753.78

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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.