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Finding the Fourth Proportional to 567,667.17, 783,340.65 and 313,012.89

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Solution

The fourth proportional to 567,667.17, 783,340.65 and 313,012.89 is: 431,935.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,667.17 : 783,340.65 = 313,012.89 : x
  2. Step 2: Convert to fraction form
    567,667.17/783,340.65 = 313,012.89/x
  3. Step 3: Cross multiply
    567,667.17x = 783,340.65 × 313,012.89
  4. Step 4: Simplify right side
    567,667.17x = 245,195,720,710.98
  5. Step 5: Solve for x
    x = 245,195,720,710.98/567,667.17
  6. Step 6: Final answer
    x = 431,935.71

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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.