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Finding the Fourth Proportional to 569,245.65, 785,921.31 and 354,700.95

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Solution

The fourth proportional to 569,245.65, 785,921.31 and 354,700.95 is: 489,713.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,245.65 : 785,921.31 = 354,700.95 : x
  2. Step 2: Convert to fraction form
    569,245.65/785,921.31 = 354,700.95/x
  3. Step 3: Cross multiply
    569,245.65x = 785,921.31 × 354,700.95
  4. Step 4: Simplify right side
    569,245.65x = 278,767,035,282.25
  5. Step 5: Solve for x
    x = 278,767,035,282.25/569,245.65
  6. Step 6: Final answer
    x = 489,713.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.