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Finding the Fourth Proportional to 966,161.86, 1,331,109.93 and 747,619

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Solution

The fourth proportional to 966,161.86, 1,331,109.93 and 747,619 is: 1,030,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,161.86 : 1,331,109.93 = 747,619 : x
  2. Step 2: Convert to fraction form
    966,161.86/1,331,109.93 = 747,619/x
  3. Step 3: Cross multiply
    966,161.86x = 1,331,109.93 × 747,619
  4. Step 4: Simplify right side
    966,161.86x = 995,163,074,756.67
  5. Step 5: Solve for x
    x = 995,163,074,756.67/966,161.86
  6. Step 6: Final answer
    x = 1,030,016.93

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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.