Home / 654,035.36-902,411.12-381,948.80

Finding the Fourth Proportional to 654,035.36, 902,411.12 and 381,948.80

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Solution

The fourth proportional to 654,035.36, 902,411.12 and 381,948.80 is: 526,997.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,035.36 : 902,411.12 = 381,948.80 : x
  2. Step 2: Convert to fraction form
    654,035.36/902,411.12 = 381,948.80/x
  3. Step 3: Cross multiply
    654,035.36x = 902,411.12 × 381,948.80
  4. Step 4: Simplify right side
    654,035.36x = 344,674,844,390.66
  5. Step 5: Solve for x
    x = 344,674,844,390.66/654,035.36
  6. Step 6: Final answer
    x = 526,997.26

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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.