Home / 527,881.15-791,814.30-128,522.80

Finding the Fourth Proportional to 527,881.15, 791,814.30 and 128,522.80

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Solution

The fourth proportional to 527,881.15, 791,814.30 and 128,522.80 is: 192,782.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,881.15 : 791,814.30 = 128,522.80 : x
  2. Step 2: Convert to fraction form
    527,881.15/791,814.30 = 128,522.80/x
  3. Step 3: Cross multiply
    527,881.15x = 791,814.30 × 128,522.80
  4. Step 4: Simplify right side
    527,881.15x = 101,766,190,916.04
  5. Step 5: Solve for x
    x = 101,766,190,916.04/527,881.15
  6. Step 6: Final answer
    x = 192,782.39

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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.