Home / 439,738.60-659,607.90-437,114.20

Finding the Fourth Proportional to 439,738.60, 659,607.90 and 437,114.20

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Solution

The fourth proportional to 439,738.60, 659,607.90 and 437,114.20 is: 655,671.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,738.60 : 659,607.90 = 437,114.20 : x
  2. Step 2: Convert to fraction form
    439,738.60/659,607.90 = 437,114.20/x
  3. Step 3: Cross multiply
    439,738.60x = 659,607.90 × 437,114.20
  4. Step 4: Simplify right side
    439,738.60x = 288,323,979,522.18
  5. Step 5: Solve for x
    x = 288,323,979,522.18/439,738.60
  6. Step 6: Final answer
    x = 655,671.30

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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.