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Finding the Fourth Proportional to 313,603.82, 432,776.96 and 170,366.12

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Solution

The fourth proportional to 313,603.82, 432,776.96 and 170,366.12 is: 235,107.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,603.82 : 432,776.96 = 170,366.12 : x
  2. Step 2: Convert to fraction form
    313,603.82/432,776.96 = 170,366.12/x
  3. Step 3: Cross multiply
    313,603.82x = 432,776.96 × 170,366.12
  4. Step 4: Simplify right side
    313,603.82x = 73,730,528,484.88
  5. Step 5: Solve for x
    x = 73,730,528,484.88/313,603.82
  6. Step 6: Final answer
    x = 235,107.24

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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.