Home / 975,165.86-1,345,187.31-567,221.78

Finding the Fourth Proportional to 975,165.86, 1,345,187.31 and 567,221.78

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Solution

The fourth proportional to 975,165.86, 1,345,187.31 and 567,221.78 is: 782,451.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,165.86 : 1,345,187.31 = 567,221.78 : x
  2. Step 2: Convert to fraction form
    975,165.86/1,345,187.31 = 567,221.78/x
  3. Step 3: Cross multiply
    975,165.86x = 1,345,187.31 × 567,221.78
  4. Step 4: Simplify right side
    975,165.86x = 763,019,540,411.61
  5. Step 5: Solve for x
    x = 763,019,540,411.61/975,165.86
  6. Step 6: Final answer
    x = 782,451.04

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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.