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Finding the Fourth Proportional to 578,052.30, 866,948.85 and 379,764.30

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Solution

The fourth proportional to 578,052.30, 866,948.85 and 379,764.30 is: 569,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,052.30 : 866,948.85 = 379,764.30 : x
  2. Step 2: Convert to fraction form
    578,052.30/866,948.85 = 379,764.30/x
  3. Step 3: Cross multiply
    578,052.30x = 866,948.85 × 379,764.30
  4. Step 4: Simplify right side
    578,052.30x = 329,236,223,156.06
  5. Step 5: Solve for x
    x = 329,236,223,156.06/578,052.30
  6. Step 6: Final answer
    x = 569,561.31

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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.