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Finding the Fourth Proportional to 569,242.65, 785,917.17 and 354,697.95

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Solution

The fourth proportional to 569,242.65, 785,917.17 and 354,697.95 is: 489,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,242.65 : 785,917.17 = 354,697.95 : x
  2. Step 2: Convert to fraction form
    569,242.65/785,917.17 = 354,697.95/x
  3. Step 3: Cross multiply
    569,242.65x = 785,917.17 × 354,697.95
  4. Step 4: Simplify right side
    569,242.65x = 278,763,209,068.80
  5. Step 5: Solve for x
    x = 278,763,209,068.80/569,242.65
  6. Step 6: Final answer
    x = 489,708.93

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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.