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Finding the Fourth Proportional to 580,634.41, 870,472.12 and 256,191.52

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Solution

The fourth proportional to 580,634.41, 870,472.12 and 256,191.52 is: 384,075.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,634.41 : 870,472.12 = 256,191.52 : x
  2. Step 2: Convert to fraction form
    580,634.41/870,472.12 = 256,191.52/x
  3. Step 3: Cross multiply
    580,634.41x = 870,472.12 × 256,191.52
  4. Step 4: Simplify right side
    580,634.41x = 223,007,578,632.65
  5. Step 5: Solve for x
    x = 223,007,578,632.65/580,634.41
  6. Step 6: Final answer
    x = 384,075.72

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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.