Home / 447,024.60-670,536.90-287,592.30

Finding the Fourth Proportional to 447,024.60, 670,536.90 and 287,592.30

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Solution

The fourth proportional to 447,024.60, 670,536.90 and 287,592.30 is: 431,388.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,024.60 : 670,536.90 = 287,592.30 : x
  2. Step 2: Convert to fraction form
    447,024.60/670,536.90 = 287,592.30/x
  3. Step 3: Cross multiply
    447,024.60x = 670,536.90 × 287,592.30
  4. Step 4: Simplify right side
    447,024.60x = 192,841,249,305.87
  5. Step 5: Solve for x
    x = 192,841,249,305.87/447,024.60
  6. Step 6: Final answer
    x = 431,388.45

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Similar ratio
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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.