Home / 854,120.61-1,178,640.17-472,122.78

Finding the Fourth Proportional to 854,120.61, 1,178,640.17 and 472,122.78

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Solution

The fourth proportional to 854,120.61, 1,178,640.17 and 472,122.78 is: 651,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,120.61 : 1,178,640.17 = 472,122.78 : x
  2. Step 2: Convert to fraction form
    854,120.61/1,178,640.17 = 472,122.78/x
  3. Step 3: Cross multiply
    854,120.61x = 1,178,640.17 × 472,122.78
  4. Step 4: Simplify right side
    854,120.61x = 556,462,873,680.07
  5. Step 5: Solve for x
    x = 556,462,873,680.07/854,120.61
  6. Step 6: Final answer
    x = 651,503.86

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1.5x scale

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.