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Finding the Fourth Proportional to 518,696.16, 778,044.16 and 163,959.20

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Solution

The fourth proportional to 518,696.16, 778,044.16 and 163,959.20 is: 245,938.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,696.16 : 778,044.16 = 163,959.20 : x
  2. Step 2: Convert to fraction form
    518,696.16/778,044.16 = 163,959.20/x
  3. Step 3: Cross multiply
    518,696.16x = 778,044.16 × 163,959.20
  4. Step 4: Simplify right side
    518,696.16x = 127,567,498,038.27
  5. Step 5: Solve for x
    x = 127,567,498,038.27/518,696.16
  6. Step 6: Final answer
    x = 245,938.77

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Similar ratio
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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.