Home / 527,191.20-789,711.60-326,896.80

Finding the Fourth Proportional to 527,191.20, 789,711.60 and 326,896.80

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Solution

The fourth proportional to 527,191.20, 789,711.60 and 326,896.80 is: 489,678.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,191.20 : 789,711.60 = 326,896.80 : x
  2. Step 2: Convert to fraction form
    527,191.20/789,711.60 = 326,896.80/x
  3. Step 3: Cross multiply
    527,191.20x = 789,711.60 × 326,896.80
  4. Step 4: Simplify right side
    527,191.20x = 258,154,194,962.88
  5. Step 5: Solve for x
    x = 258,154,194,962.88/527,191.20
  6. Step 6: Final answer
    x = 489,678.50

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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.