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Finding the Fourth Proportional to 530,570.11, 732,191.18 and 288,854.36

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Solution

The fourth proportional to 530,570.11, 732,191.18 and 288,854.36 is: 398,621.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,570.11 : 732,191.18 = 288,854.36 : x
  2. Step 2: Convert to fraction form
    530,570.11/732,191.18 = 288,854.36/x
  3. Step 3: Cross multiply
    530,570.11x = 732,191.18 × 288,854.36
  4. Step 4: Simplify right side
    530,570.11x = 211,496,614,696.55
  5. Step 5: Solve for x
    x = 211,496,614,696.55/530,570.11
  6. Step 6: Final answer
    x = 398,621.43

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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.