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Finding the Fourth Proportional to 359,315.66, 495,764.34 and 263,656.28

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Solution

The fourth proportional to 359,315.66, 495,764.34 and 263,656.28 is: 363,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,315.66 : 495,764.34 = 263,656.28 : x
  2. Step 2: Convert to fraction form
    359,315.66/495,764.34 = 263,656.28/x
  3. Step 3: Cross multiply
    359,315.66x = 495,764.34 × 263,656.28
  4. Step 4: Simplify right side
    359,315.66x = 130,711,381,641.06
  5. Step 5: Solve for x
    x = 130,711,381,641.06/359,315.66
  6. Step 6: Final answer
    x = 363,778.69

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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.