Home / 864,681.87-1,192,290.39-558,356.07

Finding the Fourth Proportional to 864,681.87, 1,192,290.39 and 558,356.07

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Solution

The fourth proportional to 864,681.87, 1,192,290.39 and 558,356.07 is: 769,904.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,681.87 : 1,192,290.39 = 558,356.07 : x
  2. Step 2: Convert to fraction form
    864,681.87/1,192,290.39 = 558,356.07/x
  3. Step 3: Cross multiply
    864,681.87x = 1,192,290.39 × 558,356.07
  4. Step 4: Simplify right side
    864,681.87x = 665,722,576,459.17
  5. Step 5: Solve for x
    x = 665,722,576,459.17/864,681.87
  6. Step 6: Final answer
    x = 769,904.63

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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.