Home / 778,963.50-1,168,445.25-187,987.50

Finding the Fourth Proportional to 778,963.50, 1,168,445.25 and 187,987.50

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Solution

The fourth proportional to 778,963.50, 1,168,445.25 and 187,987.50 is: 281,981.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,963.50 : 1,168,445.25 = 187,987.50 : x
  2. Step 2: Convert to fraction form
    778,963.50/1,168,445.25 = 187,987.50/x
  3. Step 3: Cross multiply
    778,963.50x = 1,168,445.25 × 187,987.50
  4. Step 4: Simplify right side
    778,963.50x = 219,653,101,434.38
  5. Step 5: Solve for x
    x = 219,653,101,434.38/778,963.50
  6. Step 6: Final answer
    x = 281,981.25

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Half scale
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Double scale
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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.