Home / 649,535.18-896,377.43-355,202.20

Finding the Fourth Proportional to 649,535.18, 896,377.43 and 355,202.20

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Solution

The fourth proportional to 649,535.18, 896,377.43 and 355,202.20 is: 490,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,535.18 : 896,377.43 = 355,202.20 : x
  2. Step 2: Convert to fraction form
    649,535.18/896,377.43 = 355,202.20/x
  3. Step 3: Cross multiply
    649,535.18x = 896,377.43 × 355,202.20
  4. Step 4: Simplify right side
    649,535.18x = 318,395,235,166.35
  5. Step 5: Solve for x
    x = 318,395,235,166.35/649,535.18
  6. Step 6: Final answer
    x = 490,189.36

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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.