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Finding the Fourth Proportional to 546,264.55, 754,011.75 and 316,879.84

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Solution

The fourth proportional to 546,264.55, 754,011.75 and 316,879.84 is: 437,390.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,264.55 : 754,011.75 = 316,879.84 : x
  2. Step 2: Convert to fraction form
    546,264.55/754,011.75 = 316,879.84/x
  3. Step 3: Cross multiply
    546,264.55x = 754,011.75 × 316,879.84
  4. Step 4: Simplify right side
    546,264.55x = 238,931,122,698.12
  5. Step 5: Solve for x
    x = 238,931,122,698.12/546,264.55
  6. Step 6: Final answer
    x = 437,390.86

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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.