Home / 679,889.30-938,182.10-373,960.80

Finding the Fourth Proportional to 679,889.30, 938,182.10 and 373,960.80

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Solution

The fourth proportional to 679,889.30, 938,182.10 and 373,960.80 is: 516,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,889.30 : 938,182.10 = 373,960.80 : x
  2. Step 2: Convert to fraction form
    679,889.30/938,182.10 = 373,960.80/x
  3. Step 3: Cross multiply
    679,889.30x = 938,182.10 × 373,960.80
  4. Step 4: Simplify right side
    679,889.30x = 350,843,326,791.88
  5. Step 5: Solve for x
    x = 350,843,326,791.88/679,889.30
  6. Step 6: Final answer
    x = 516,030.08

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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.