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Finding the Fourth Proportional to 808,184, 1,115,772.32 and 718,512.32

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Solution

The fourth proportional to 808,184, 1,115,772.32 and 718,512.32 is: 991,972.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,184 : 1,115,772.32 = 718,512.32 : x
  2. Step 2: Convert to fraction form
    808,184/1,115,772.32 = 718,512.32/x
  3. Step 3: Cross multiply
    808,184x = 1,115,772.32 × 718,512.32
  4. Step 4: Simplify right side
    808,184x = 801,696,158,234.98
  5. Step 5: Solve for x
    x = 801,696,158,234.98/808,184
  6. Step 6: Final answer
    x = 991,972.32

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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.