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Finding the Fourth Proportional to 573,406.20, 859,850.10 and 257,700.60

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Solution

The fourth proportional to 573,406.20, 859,850.10 and 257,700.60 is: 386,434.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,406.20 : 859,850.10 = 257,700.60 : x
  2. Step 2: Convert to fraction form
    573,406.20/859,850.10 = 257,700.60/x
  3. Step 3: Cross multiply
    573,406.20x = 859,850.10 × 257,700.60
  4. Step 4: Simplify right side
    573,406.20x = 221,583,886,680.06
  5. Step 5: Solve for x
    x = 221,583,886,680.06/573,406.20
  6. Step 6: Final answer
    x = 386,434.41

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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.