Home / 923,442.39-1,385,602.20-639,569.79

Finding the Fourth Proportional to 923,442.39, 1,385,602.20 and 639,569.79

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Solution

The fourth proportional to 923,442.39, 1,385,602.20 and 639,569.79 is: 959,658.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,442.39 : 1,385,602.20 = 639,569.79 : x
  2. Step 2: Convert to fraction form
    923,442.39/1,385,602.20 = 639,569.79/x
  3. Step 3: Cross multiply
    923,442.39x = 1,385,602.20 × 639,569.79
  4. Step 4: Simplify right side
    923,442.39x = 886,189,308,077.54
  5. Step 5: Solve for x
    x = 886,189,308,077.54/923,442.39
  6. Step 6: Final answer
    x = 959,658.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.