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Finding the Fourth Proportional to 567,437.16, 783,063.08 and 312,792.60

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Solution

The fourth proportional to 567,437.16, 783,063.08 and 312,792.60 is: 431,653.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,437.16 : 783,063.08 = 312,792.60 : x
  2. Step 2: Convert to fraction form
    567,437.16/783,063.08 = 312,792.60/x
  3. Step 3: Cross multiply
    567,437.16x = 783,063.08 × 312,792.60
  4. Step 4: Simplify right side
    567,437.16x = 244,936,336,757.21
  5. Step 5: Solve for x
    x = 244,936,336,757.21/567,437.16
  6. Step 6: Final answer
    x = 431,653.68

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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.