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Finding the Fourth Proportional to 625,612.69, 936,903.63 and 432,947.24

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Solution

The fourth proportional to 625,612.69, 936,903.63 and 432,947.24 is: 648,372.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,612.69 : 936,903.63 = 432,947.24 : x
  2. Step 2: Convert to fraction form
    625,612.69/936,903.63 = 432,947.24/x
  3. Step 3: Cross multiply
    625,612.69x = 936,903.63 × 432,947.24
  4. Step 4: Simplify right side
    625,612.69x = 405,629,840,754.48
  5. Step 5: Solve for x
    x = 405,629,840,754.48/625,612.69
  6. Step 6: Final answer
    x = 648,372.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.