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Finding the Fourth Proportional to 418,526.46, 577,764.90 and 267,710.94

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Solution

The fourth proportional to 418,526.46, 577,764.90 and 267,710.94 is: 369,567.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,526.46 : 577,764.90 = 267,710.94 : x
  2. Step 2: Convert to fraction form
    418,526.46/577,764.90 = 267,710.94/x
  3. Step 3: Cross multiply
    418,526.46x = 577,764.90 × 267,710.94
  4. Step 4: Simplify right side
    418,526.46x = 154,673,984,478.01
  5. Step 5: Solve for x
    x = 154,673,984,478.01/418,526.46
  6. Step 6: Final answer
    x = 369,567.99

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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.