Home / 851,119.70-1,174,545.18-469,154.72

Finding the Fourth Proportional to 851,119.70, 1,174,545.18 and 469,154.72

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Solution

The fourth proportional to 851,119.70, 1,174,545.18 and 469,154.72 is: 647,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,119.70 : 1,174,545.18 = 469,154.72 : x
  2. Step 2: Convert to fraction form
    851,119.70/1,174,545.18 = 469,154.72/x
  3. Step 3: Cross multiply
    851,119.70x = 1,174,545.18 × 469,154.72
  4. Step 4: Simplify right side
    851,119.70x = 551,043,415,050.25
  5. Step 5: Solve for x
    x = 551,043,415,050.25/851,119.70
  6. Step 6: Final answer
    x = 647,433.51

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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.