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Finding the Fourth Proportional to 558,488.16, 770,713.84 and 316,693.28

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Solution

The fourth proportional to 558,488.16, 770,713.84 and 316,693.28 is: 437,036.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,488.16 : 770,713.84 = 316,693.28 : x
  2. Step 2: Convert to fraction form
    558,488.16/770,713.84 = 316,693.28/x
  3. Step 3: Cross multiply
    558,488.16x = 770,713.84 × 316,693.28
  4. Step 4: Simplify right side
    558,488.16x = 244,079,893,931.00
  5. Step 5: Solve for x
    x = 244,079,893,931.00/558,488.16
  6. Step 6: Final answer
    x = 437,036.83

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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.