Home / 628,596.36-867,434.40-342,115.56

Finding the Fourth Proportional to 628,596.36, 867,434.40 and 342,115.56

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Solution

The fourth proportional to 628,596.36, 867,434.40 and 342,115.56 is: 472,103.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,596.36 : 867,434.40 = 342,115.56 : x
  2. Step 2: Convert to fraction form
    628,596.36/867,434.40 = 342,115.56/x
  3. Step 3: Cross multiply
    628,596.36x = 867,434.40 × 342,115.56
  4. Step 4: Simplify right side
    628,596.36x = 296,762,805,519.26
  5. Step 5: Solve for x
    x = 296,762,805,519.26/628,596.36
  6. Step 6: Final answer
    x = 472,103.92

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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.