Home / 841,919.73-1,161,721.10-479,358.87

Finding the Fourth Proportional to 841,919.73, 1,161,721.10 and 479,358.87

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Solution

The fourth proportional to 841,919.73, 1,161,721.10 and 479,358.87 is: 661,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,919.73 : 1,161,721.10 = 479,358.87 : x
  2. Step 2: Convert to fraction form
    841,919.73/1,161,721.10 = 479,358.87/x
  3. Step 3: Cross multiply
    841,919.73x = 1,161,721.10 × 479,358.87
  4. Step 4: Simplify right side
    841,919.73x = 556,881,311,354.36
  5. Step 5: Solve for x
    x = 556,881,311,354.36/841,919.73
  6. Step 6: Final answer
    x = 661,442.29

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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.