Home / 439,219.30-657,844.80-360,487.30

Finding the Fourth Proportional to 439,219.30, 657,844.80 and 360,487.30

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Solution

The fourth proportional to 439,219.30, 657,844.80 and 360,487.30 is: 539,923.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,219.30 : 657,844.80 = 360,487.30 : x
  2. Step 2: Convert to fraction form
    439,219.30/657,844.80 = 360,487.30/x
  3. Step 3: Cross multiply
    439,219.30x = 657,844.80 × 360,487.30
  4. Step 4: Simplify right side
    439,219.30x = 237,144,695,771.04
  5. Step 5: Solve for x
    x = 237,144,695,771.04/439,219.30
  6. Step 6: Final answer
    x = 539,923.21

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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.