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Finding the Fourth Proportional to 443,218.64, 615,770.95 and 437,904.23

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Solution

The fourth proportional to 443,218.64, 615,770.95 and 437,904.23 is: 608,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,218.64 : 615,770.95 = 437,904.23 : x
  2. Step 2: Convert to fraction form
    443,218.64/615,770.95 = 437,904.23/x
  3. Step 3: Cross multiply
    443,218.64x = 615,770.95 × 437,904.23
  4. Step 4: Simplify right side
    443,218.64x = 269,648,703,339.72
  5. Step 5: Solve for x
    x = 269,648,703,339.72/443,218.64
  6. Step 6: Final answer
    x = 608,387.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.