Home / 1,277,001.16-1,915,782.06-378,512.20

Finding the Fourth Proportional to 1,277,001.16, 1,915,782.06 and 378,512.20

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Solution

The fourth proportional to 1,277,001.16, 1,915,782.06 and 378,512.20 is: 567,851.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,001.16 : 1,915,782.06 = 378,512.20 : x
  2. Step 2: Convert to fraction form
    1,277,001.16/1,915,782.06 = 378,512.20/x
  3. Step 3: Cross multiply
    1,277,001.16x = 1,915,782.06 × 378,512.20
  4. Step 4: Simplify right side
    1,277,001.16x = 725,146,882,251.13
  5. Step 5: Solve for x
    x = 725,146,882,251.13/1,277,001.16
  6. Step 6: Final answer
    x = 567,851.39

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Double scale
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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.