Home / 911,040.52-1,256,943.54-508,554.76

Finding the Fourth Proportional to 911,040.52, 1,256,943.54 and 508,554.76

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Solution

The fourth proportional to 911,040.52, 1,256,943.54 and 508,554.76 is: 701,642.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,040.52 : 1,256,943.54 = 508,554.76 : x
  2. Step 2: Convert to fraction form
    911,040.52/1,256,943.54 = 508,554.76/x
  3. Step 3: Cross multiply
    911,040.52x = 1,256,943.54 × 508,554.76
  4. Step 4: Simplify right side
    911,040.52x = 639,224,620,318.25
  5. Step 5: Solve for x
    x = 639,224,620,318.25/911,040.52
  6. Step 6: Final answer
    x = 701,642.36

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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.