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Finding the Fourth Proportional to 526,814.40, 790,223.64 and 127,454.52

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Solution

The fourth proportional to 526,814.40, 790,223.64 and 127,454.52 is: 191,182.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,814.40 : 790,223.64 = 127,454.52 : x
  2. Step 2: Convert to fraction form
    526,814.40/790,223.64 = 127,454.52/x
  3. Step 3: Cross multiply
    526,814.40x = 790,223.64 × 127,454.52
  4. Step 4: Simplify right side
    526,814.40x = 100,717,574,728.85
  5. Step 5: Solve for x
    x = 100,717,574,728.85/526,814.40
  6. Step 6: Final answer
    x = 191,182.27

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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.