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Finding the Fourth Proportional to 530,543.39, 732,159.23 and 288,832.91

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Solution

The fourth proportional to 530,543.39, 732,159.23 and 288,832.91 is: 398,594.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,543.39 : 732,159.23 = 288,832.91 : x
  2. Step 2: Convert to fraction form
    530,543.39/732,159.23 = 288,832.91/x
  3. Step 3: Cross multiply
    530,543.39x = 732,159.23 × 288,832.91
  4. Step 4: Simplify right side
    530,543.39x = 211,471,675,879.30
  5. Step 5: Solve for x
    x = 211,471,675,879.30/530,543.39
  6. Step 6: Final answer
    x = 398,594.50

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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.