Home / 985,776.15-1,478,028.33-386,797.82

Finding the Fourth Proportional to 985,776.15, 1,478,028.33 and 386,797.82

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Solution

The fourth proportional to 985,776.15, 1,478,028.33 and 386,797.82 is: 579,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,776.15 : 1,478,028.33 = 386,797.82 : x
  2. Step 2: Convert to fraction form
    985,776.15/1,478,028.33 = 386,797.82/x
  3. Step 3: Cross multiply
    985,776.15x = 1,478,028.33 × 386,797.82
  4. Step 4: Simplify right side
    985,776.15x = 571,698,128,552.10
  5. Step 5: Solve for x
    x = 571,698,128,552.10/985,776.15
  6. Step 6: Final answer
    x = 579,947.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.