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Finding the Fourth Proportional to 472,776.01, 652,432.46 and 257,920.61

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Solution

The fourth proportional to 472,776.01, 652,432.46 and 257,920.61 is: 355,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,776.01 : 652,432.46 = 257,920.61 : x
  2. Step 2: Convert to fraction form
    472,776.01/652,432.46 = 257,920.61/x
  3. Step 3: Cross multiply
    472,776.01x = 652,432.46 × 257,920.61
  4. Step 4: Simplify right side
    472,776.01x = 168,275,773,515.24
  5. Step 5: Solve for x
    x = 168,275,773,515.24/472,776.01
  6. Step 6: Final answer
    x = 355,931.29

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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.