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Finding the Fourth Proportional to 530,184.93, 731,633.29 and 288,468.45

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Solution

The fourth proportional to 530,184.93, 731,633.29 and 288,468.45 is: 398,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,184.93 : 731,633.29 = 288,468.45 : x
  2. Step 2: Convert to fraction form
    530,184.93/731,633.29 = 288,468.45/x
  3. Step 3: Cross multiply
    530,184.93x = 731,633.29 × 288,468.45
  4. Step 4: Simplify right side
    530,184.93x = 211,053,121,134.70
  5. Step 5: Solve for x
    x = 211,053,121,134.70/530,184.93
  6. Step 6: Final answer
    x = 398,074.54

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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.