Home / 763,685.56-1,053,181.83-519,036.76

Finding the Fourth Proportional to 763,685.56, 1,053,181.83 and 519,036.76

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Solution

The fourth proportional to 763,685.56, 1,053,181.83 and 519,036.76 is: 715,792.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,685.56 : 1,053,181.83 = 519,036.76 : x
  2. Step 2: Convert to fraction form
    763,685.56/1,053,181.83 = 519,036.76/x
  3. Step 3: Cross multiply
    763,685.56x = 1,053,181.83 × 519,036.76
  4. Step 4: Simplify right side
    763,685.56x = 546,640,084,734.07
  5. Step 5: Solve for x
    x = 546,640,084,734.07/763,685.56
  6. Step 6: Final answer
    x = 715,792.09

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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.