Home / 858,944.24-1,288,153.90-409,428.28

Finding the Fourth Proportional to 858,944.24, 1,288,153.90 and 409,428.28

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Solution

The fourth proportional to 858,944.24, 1,288,153.90 and 409,428.28 is: 614,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,944.24 : 1,288,153.90 = 409,428.28 : x
  2. Step 2: Convert to fraction form
    858,944.24/1,288,153.90 = 409,428.28/x
  3. Step 3: Cross multiply
    858,944.24x = 1,288,153.90 × 409,428.28
  4. Step 4: Simplify right side
    858,944.24x = 527,406,635,652.29
  5. Step 5: Solve for x
    x = 527,406,635,652.29/858,944.24
  6. Step 6: Final answer
    x = 614,017.31

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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.