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Finding the Fourth Proportional to 527,604.84, 791,400.30 and 128,244.42

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Solution

The fourth proportional to 527,604.84, 791,400.30 and 128,244.42 is: 192,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,604.84 : 791,400.30 = 128,244.42 : x
  2. Step 2: Convert to fraction form
    527,604.84/791,400.30 = 128,244.42/x
  3. Step 3: Cross multiply
    527,604.84x = 791,400.30 × 128,244.42
  4. Step 4: Simplify right side
    527,604.84x = 101,492,672,461.33
  5. Step 5: Solve for x
    x = 101,492,672,461.33/527,604.84
  6. Step 6: Final answer
    x = 192,364.94

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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.