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Finding the Fourth Proportional to 468,220.20, 646,142.58 and 253,363.92

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Solution

The fourth proportional to 468,220.20, 646,142.58 and 253,363.92 is: 349,641.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,220.20 : 646,142.58 = 253,363.92 : x
  2. Step 2: Convert to fraction form
    468,220.20/646,142.58 = 253,363.92/x
  3. Step 3: Cross multiply
    468,220.20x = 646,142.58 × 253,363.92
  4. Step 4: Simplify right side
    468,220.20x = 163,709,216,947.71
  5. Step 5: Solve for x
    x = 163,709,216,947.71/468,220.20
  6. Step 6: Final answer
    x = 349,641.51

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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.