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Finding the Fourth Proportional to 569,751.48, 786,243.60 and 315,097.20

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Solution

The fourth proportional to 569,751.48, 786,243.60 and 315,097.20 is: 434,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,751.48 : 786,243.60 = 315,097.20 : x
  2. Step 2: Convert to fraction form
    569,751.48/786,243.60 = 315,097.20/x
  3. Step 3: Cross multiply
    569,751.48x = 786,243.60 × 315,097.20
  4. Step 4: Simplify right side
    569,751.48x = 247,743,156,877.92
  5. Step 5: Solve for x
    x = 247,743,156,877.92/569,751.48
  6. Step 6: Final answer
    x = 434,826.70

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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.