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Finding the Fourth Proportional to 530,654.64, 732,317.34 and 288,947.40

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Solution

The fourth proportional to 530,654.64, 732,317.34 and 288,947.40 is: 398,755.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,654.64 : 732,317.34 = 288,947.40 : x
  2. Step 2: Convert to fraction form
    530,654.64/732,317.34 = 288,947.40/x
  3. Step 3: Cross multiply
    530,654.64x = 732,317.34 × 288,947.40
  4. Step 4: Simplify right side
    530,654.64x = 211,601,191,367.92
  5. Step 5: Solve for x
    x = 211,601,191,367.92/530,654.64
  6. Step 6: Final answer
    x = 398,755.00

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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.