Home / 679,224.85-937,419.19-438,208.56

Finding the Fourth Proportional to 679,224.85, 937,419.19 and 438,208.56

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Solution

The fourth proportional to 679,224.85, 937,419.19 and 438,208.56 is: 604,785.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,224.85 : 937,419.19 = 438,208.56 : x
  2. Step 2: Convert to fraction form
    679,224.85/937,419.19 = 438,208.56/x
  3. Step 3: Cross multiply
    679,224.85x = 937,419.19 × 438,208.56
  4. Step 4: Simplify right side
    679,224.85x = 410,785,112,270.75
  5. Step 5: Solve for x
    x = 410,785,112,270.75/679,224.85
  6. Step 6: Final answer
    x = 604,785.17

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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.