Home / 878,210.48-1,211,261.78-755,911.01

Finding the Fourth Proportional to 878,210.48, 1,211,261.78 and 755,911.01

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Solution

The fourth proportional to 878,210.48, 1,211,261.78 and 755,911.01 is: 1,042,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,210.48 : 1,211,261.78 = 755,911.01 : x
  2. Step 2: Convert to fraction form
    878,210.48/1,211,261.78 = 755,911.01/x
  3. Step 3: Cross multiply
    878,210.48x = 1,211,261.78 × 755,911.01
  4. Step 4: Simplify right side
    878,210.48x = 915,606,105,658.33
  5. Step 5: Solve for x
    x = 915,606,105,658.33/878,210.48
  6. Step 6: Final answer
    x = 1,042,581.63

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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.