Home / 712,689.76-1,069,231.44-634,351.44

Finding the Fourth Proportional to 712,689.76, 1,069,231.44 and 634,351.44

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Solution

The fourth proportional to 712,689.76, 1,069,231.44 and 634,351.44 is: 951,702.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,689.76 : 1,069,231.44 = 634,351.44 : x
  2. Step 2: Convert to fraction form
    712,689.76/1,069,231.44 = 634,351.44/x
  3. Step 3: Cross multiply
    712,689.76x = 1,069,231.44 × 634,351.44
  4. Step 4: Simplify right side
    712,689.76x = 678,268,503,657.27
  5. Step 5: Solve for x
    x = 678,268,503,657.27/712,689.76
  6. Step 6: Final answer
    x = 951,702.33

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1.5x scale

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.