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Finding the Fourth Proportional to 363,393.55, 501,478.12 and 202,248.64

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Solution

The fourth proportional to 363,393.55, 501,478.12 and 202,248.64 is: 279,100.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,393.55 : 501,478.12 = 202,248.64 : x
  2. Step 2: Convert to fraction form
    363,393.55/501,478.12 = 202,248.64/x
  3. Step 3: Cross multiply
    363,393.55x = 501,478.12 × 202,248.64
  4. Step 4: Simplify right side
    363,393.55x = 101,423,267,759.76
  5. Step 5: Solve for x
    x = 101,423,267,759.76/363,393.55
  6. Step 6: Final answer
    x = 279,100.35

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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.