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Finding the Fourth Proportional to 567,972.69, 783,789.70 and 313,323.81

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Solution

The fourth proportional to 567,972.69, 783,789.70 and 313,323.81 is: 432,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,972.69 : 783,789.70 = 313,323.81 : x
  2. Step 2: Convert to fraction form
    567,972.69/783,789.70 = 313,323.81/x
  3. Step 3: Cross multiply
    567,972.69x = 783,789.70 × 313,323.81
  4. Step 4: Simplify right side
    567,972.69x = 245,579,975,042.76
  5. Step 5: Solve for x
    x = 245,579,975,042.76/567,972.69
  6. Step 6: Final answer
    x = 432,379.90

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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.