Home / 708,379.20-977,583.79-386,110.17

Finding the Fourth Proportional to 708,379.20, 977,583.79 and 386,110.17

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Solution

The fourth proportional to 708,379.20, 977,583.79 and 386,110.17 is: 532,843.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,379.20 : 977,583.79 = 386,110.17 : x
  2. Step 2: Convert to fraction form
    708,379.20/977,583.79 = 386,110.17/x
  3. Step 3: Cross multiply
    708,379.20x = 977,583.79 × 386,110.17
  4. Step 4: Simplify right side
    708,379.20x = 377,455,044,824.83
  5. Step 5: Solve for x
    x = 377,455,044,824.83/708,379.20
  6. Step 6: Final answer
    x = 532,843.21

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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.