Home / 785,519.72-1,084,018.14-445,987.97

Finding the Fourth Proportional to 785,519.72, 1,084,018.14 and 445,987.97

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Solution

The fourth proportional to 785,519.72, 1,084,018.14 and 445,987.97 is: 615,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,519.72 : 1,084,018.14 = 445,987.97 : x
  2. Step 2: Convert to fraction form
    785,519.72/1,084,018.14 = 445,987.97/x
  3. Step 3: Cross multiply
    785,519.72x = 1,084,018.14 × 445,987.97
  4. Step 4: Simplify right side
    785,519.72x = 483,459,054,444.36
  5. Step 5: Solve for x
    x = 483,459,054,444.36/785,519.72
  6. Step 6: Final answer
    x = 615,463.93

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Double scale
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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.