Home / 527,829.60-791,733.32-128,472.60

Finding the Fourth Proportional to 527,829.60, 791,733.32 and 128,472.60

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Solution

The fourth proportional to 527,829.60, 791,733.32 and 128,472.60 is: 192,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,829.60 : 791,733.32 = 128,472.60 : x
  2. Step 2: Convert to fraction form
    527,829.60/791,733.32 = 128,472.60/x
  3. Step 3: Cross multiply
    527,829.60x = 791,733.32 × 128,472.60
  4. Step 4: Simplify right side
    527,829.60x = 101,716,038,127.03
  5. Step 5: Solve for x
    x = 101,716,038,127.03/527,829.60
  6. Step 6: Final answer
    x = 192,706.20

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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.