Home / 669,307,116.88-923,666,251.44-371,961,891.55

Finding the Fourth Proportional to 669,307,116.88, 923,666,251.44 and 371,961,891.55

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Solution

The fourth proportional to 669,307,116.88, 923,666,251.44 and 371,961,891.55 is: 513,319,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,307,116.88 : 923,666,251.44 = 371,961,891.55 : x
  2. Step 2: Convert to fraction form
    669,307,116.88/923,666,251.44 = 371,961,891.55/x
  3. Step 3: Cross multiply
    669,307,116.88x = 923,666,251.44 × 371,961,891.55
  4. Step 4: Simplify right side
    669,307,116.88x = 343,568,646,046,520,320
  5. Step 5: Solve for x
    x = 343,568,646,046,520,320/669,307,116.88
  6. Step 6: Final answer
    x = 513,319,875.71

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Double scale
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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.