Home / 781,511.41-1,078,531.23-437,344.44

Finding the Fourth Proportional to 781,511.41, 1,078,531.23 and 437,344.44

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Solution

The fourth proportional to 781,511.41, 1,078,531.23 and 437,344.44 is: 603,560.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,511.41 : 1,078,531.23 = 437,344.44 : x
  2. Step 2: Convert to fraction form
    781,511.41/1,078,531.23 = 437,344.44/x
  3. Step 3: Cross multiply
    781,511.41x = 1,078,531.23 × 437,344.44
  4. Step 4: Simplify right side
    781,511.41x = 471,689,636,806.86
  5. Step 5: Solve for x
    x = 471,689,636,806.86/781,511.41
  6. Step 6: Final answer
    x = 603,560.78

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Double scale
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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.