Home / 708,499.76-977,721.72-386,202.80

Finding the Fourth Proportional to 708,499.76, 977,721.72 and 386,202.80

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Solution

The fourth proportional to 708,499.76, 977,721.72 and 386,202.80 is: 532,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,499.76 : 977,721.72 = 386,202.80 : x
  2. Step 2: Convert to fraction form
    708,499.76/977,721.72 = 386,202.80/x
  3. Step 3: Cross multiply
    708,499.76x = 977,721.72 × 386,202.80
  4. Step 4: Simplify right side
    708,499.76x = 377,598,865,884.82
  5. Step 5: Solve for x
    x = 377,598,865,884.82/708,499.76
  6. Step 6: Final answer
    x = 532,955.53

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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.