Home / 986,543.55-1,361,436.39-578,562.21

Finding the Fourth Proportional to 986,543.55, 1,361,436.39 and 578,562.21

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Solution

The fourth proportional to 986,543.55, 1,361,436.39 and 578,562.21 is: 798,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,543.55 : 1,361,436.39 = 578,562.21 : x
  2. Step 2: Convert to fraction form
    986,543.55/1,361,436.39 = 578,562.21/x
  3. Step 3: Cross multiply
    986,543.55x = 1,361,436.39 × 578,562.21
  4. Step 4: Simplify right side
    986,543.55x = 787,675,646,572.82
  5. Step 5: Solve for x
    x = 787,675,646,572.82/986,543.55
  6. Step 6: Final answer
    x = 798,419.54

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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.