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Finding the Fourth Proportional to 363,925.17, 545,075.28 and 279,060.30

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Solution

The fourth proportional to 363,925.17, 545,075.28 and 279,060.30 is: 417,967.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,925.17 : 545,075.28 = 279,060.30 : x
  2. Step 2: Convert to fraction form
    363,925.17/545,075.28 = 279,060.30/x
  3. Step 3: Cross multiply
    363,925.17x = 545,075.28 × 279,060.30
  4. Step 4: Simplify right side
    363,925.17x = 152,108,871,159.38
  5. Step 5: Solve for x
    x = 152,108,871,159.38/363,925.17
  6. Step 6: Final answer
    x = 417,967.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.