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Finding the Fourth Proportional to 476,616.32, 715,012.50 and 156,786.20

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Solution

The fourth proportional to 476,616.32, 715,012.50 and 156,786.20 is: 235,208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,616.32 : 715,012.50 = 156,786.20 : x
  2. Step 2: Convert to fraction form
    476,616.32/715,012.50 = 156,786.20/x
  3. Step 3: Cross multiply
    476,616.32x = 715,012.50 × 156,786.20
  4. Step 4: Simplify right side
    476,616.32x = 112,104,092,827.50
  5. Step 5: Solve for x
    x = 112,104,092,827.50/476,616.32
  6. Step 6: Final answer
    x = 235,208.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.