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Finding the Fourth Proportional to 498,359.90, 687,497.55 and 362,182.70

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Solution

The fourth proportional to 498,359.90, 687,497.55 and 362,182.70 is: 499,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,359.90 : 687,497.55 = 362,182.70 : x
  2. Step 2: Convert to fraction form
    498,359.90/687,497.55 = 362,182.70/x
  3. Step 3: Cross multiply
    498,359.90x = 687,497.55 × 362,182.70
  4. Step 4: Simplify right side
    498,359.90x = 248,999,718,902.39
  5. Step 5: Solve for x
    x = 248,999,718,902.39/498,359.90
  6. Step 6: Final answer
    x = 499,638.35

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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.