Home / 857,158.20-1,182,892.68-469,965.51

Finding the Fourth Proportional to 857,158.20, 1,182,892.68 and 469,965.51

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Solution

The fourth proportional to 857,158.20, 1,182,892.68 and 469,965.51 is: 648,560.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,158.20 : 1,182,892.68 = 469,965.51 : x
  2. Step 2: Convert to fraction form
    857,158.20/1,182,892.68 = 469,965.51/x
  3. Step 3: Cross multiply
    857,158.20x = 1,182,892.68 × 469,965.51
  4. Step 4: Simplify right side
    857,158.20x = 555,918,761,631.47
  5. Step 5: Solve for x
    x = 555,918,761,631.47/857,158.20
  6. Step 6: Final answer
    x = 648,560.28

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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.