Home / 1,560,217.80-2,340,153.90-438,400.20

Finding the Fourth Proportional to 1,560,217.80, 2,340,153.90 and 438,400.20

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Solution

The fourth proportional to 1,560,217.80, 2,340,153.90 and 438,400.20 is: 657,551.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560,217.80 : 2,340,153.90 = 438,400.20 : x
  2. Step 2: Convert to fraction form
    1,560,217.80/2,340,153.90 = 438,400.20/x
  3. Step 3: Cross multiply
    1,560,217.80x = 2,340,153.90 × 438,400.20
  4. Step 4: Simplify right side
    1,560,217.80x = 1,025,923,937,790.78
  5. Step 5: Solve for x
    x = 1,025,923,937,790.78/1,560,217.80
  6. Step 6: Final answer
    x = 657,551.75

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Double scale
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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.