Home / 679,198.34-937,255.54-407,130.10

Finding the Fourth Proportional to 679,198.34, 937,255.54 and 407,130.10

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Solution

The fourth proportional to 679,198.34, 937,255.54 and 407,130.10 is: 561,816.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,198.34 : 937,255.54 = 407,130.10 : x
  2. Step 2: Convert to fraction form
    679,198.34/937,255.54 = 407,130.10/x
  3. Step 3: Cross multiply
    679,198.34x = 937,255.54 × 407,130.10
  4. Step 4: Simplify right side
    679,198.34x = 381,584,941,725.75
  5. Step 5: Solve for x
    x = 381,584,941,725.75/679,198.34
  6. Step 6: Final answer
    x = 561,816.66

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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.