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Finding the Fourth Proportional to 540,882.83, 811,722.89 and 256,574.20

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Solution

The fourth proportional to 540,882.83, 811,722.89 and 256,574.20 is: 385,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,882.83 : 811,722.89 = 256,574.20 : x
  2. Step 2: Convert to fraction form
    540,882.83/811,722.89 = 256,574.20/x
  3. Step 3: Cross multiply
    540,882.83x = 811,722.89 × 256,574.20
  4. Step 4: Simplify right side
    540,882.83x = 208,267,147,811.26
  5. Step 5: Solve for x
    x = 208,267,147,811.26/540,882.83
  6. Step 6: Final answer
    x = 385,050.39

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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.