Home / 644,811.61-888,902.17-450,616.42

Finding the Fourth Proportional to 644,811.61, 888,902.17 and 450,616.42

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Solution

The fourth proportional to 644,811.61, 888,902.17 and 450,616.42 is: 621,195.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,811.61 : 888,902.17 = 450,616.42 : x
  2. Step 2: Convert to fraction form
    644,811.61/888,902.17 = 450,616.42/x
  3. Step 3: Cross multiply
    644,811.61x = 888,902.17 × 450,616.42
  4. Step 4: Simplify right side
    644,811.61x = 400,553,911,094.86
  5. Step 5: Solve for x
    x = 400,553,911,094.86/644,811.61
  6. Step 6: Final answer
    x = 621,195.25

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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.