Home / 1,015,726.55-1,401,693.68-556,832.78

Finding the Fourth Proportional to 1,015,726.55, 1,401,693.68 and 556,832.78

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Solution

The fourth proportional to 1,015,726.55, 1,401,693.68 and 556,832.78 is: 768,424.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,726.55 : 1,401,693.68 = 556,832.78 : x
  2. Step 2: Convert to fraction form
    1,015,726.55/1,401,693.68 = 556,832.78/x
  3. Step 3: Cross multiply
    1,015,726.55x = 1,401,693.68 × 556,832.78
  4. Step 4: Simplify right side
    1,015,726.55x = 780,508,978,750.20
  5. Step 5: Solve for x
    x = 780,508,978,750.20/1,015,726.55
  6. Step 6: Final answer
    x = 768,424.32

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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.