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Finding the Fourth Proportional to 567,341.85, 782,936.51 and 312,693.69

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Solution

The fourth proportional to 567,341.85, 782,936.51 and 312,693.69 is: 431,519.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,341.85 : 782,936.51 = 312,693.69 : x
  2. Step 2: Convert to fraction form
    567,341.85/782,936.51 = 312,693.69/x
  3. Step 3: Cross multiply
    567,341.85x = 782,936.51 × 312,693.69
  4. Step 4: Simplify right side
    567,341.85x = 244,819,306,347.62
  5. Step 5: Solve for x
    x = 244,819,306,347.62/567,341.85
  6. Step 6: Final answer
    x = 431,519.91

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Double scale
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1.5x scale

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.