Home / 443,225.77-660,622.38-418,000.75

Finding the Fourth Proportional to 443,225.77, 660,622.38 and 418,000.75

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Solution

The fourth proportional to 443,225.77, 660,622.38 and 418,000.75 is: 623,024.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,225.77 : 660,622.38 = 418,000.75 : x
  2. Step 2: Convert to fraction form
    443,225.77/660,622.38 = 418,000.75/x
  3. Step 3: Cross multiply
    443,225.77x = 660,622.38 × 418,000.75
  4. Step 4: Simplify right side
    443,225.77x = 276,140,650,306.79
  5. Step 5: Solve for x
    x = 276,140,650,306.79/443,225.77
  6. Step 6: Final answer
    x = 623,024.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.