Home / 708,519.12-977,753.61-386,228.22

Finding the Fourth Proportional to 708,519.12, 977,753.61 and 386,228.22

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Solution

The fourth proportional to 708,519.12, 977,753.61 and 386,228.22 is: 532,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,519.12 : 977,753.61 = 386,228.22 : x
  2. Step 2: Convert to fraction form
    708,519.12/977,753.61 = 386,228.22/x
  3. Step 3: Cross multiply
    708,519.12x = 977,753.61 × 386,228.22
  4. Step 4: Simplify right side
    708,519.12x = 377,636,036,388.87
  5. Step 5: Solve for x
    x = 377,636,036,388.87/708,519.12
  6. Step 6: Final answer
    x = 532,993.43

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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.