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Finding the Fourth Proportional to 876,797.86, 1,209,851.31 and 532,454.71

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Solution

The fourth proportional to 876,797.86, 1,209,851.31 and 532,454.71 is: 734,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,797.86 : 1,209,851.31 = 532,454.71 : x
  2. Step 2: Convert to fraction form
    876,797.86/1,209,851.31 = 532,454.71/x
  3. Step 3: Cross multiply
    876,797.86x = 1,209,851.31 × 532,454.71
  4. Step 4: Simplify right side
    876,797.86x = 644,191,028,409.17
  5. Step 5: Solve for x
    x = 644,191,028,409.17/876,797.86
  6. Step 6: Final answer
    x = 734,708.71

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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.