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Finding the Fourth Proportional to 578,131.71, 866,898.78 and 253,787.07

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Solution

The fourth proportional to 578,131.71, 866,898.78 and 253,787.07 is: 380,549.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,131.71 : 866,898.78 = 253,787.07 : x
  2. Step 2: Convert to fraction form
    578,131.71/866,898.78 = 253,787.07/x
  3. Step 3: Cross multiply
    578,131.71x = 866,898.78 × 253,787.07
  4. Step 4: Simplify right side
    578,131.71x = 220,007,701,362.78
  5. Step 5: Solve for x
    x = 220,007,701,362.78/578,131.71
  6. Step 6: Final answer
    x = 380,549.44

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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.