Home / 418,323.03-577,289.43-227,336.40

Finding the Fourth Proportional to 418,323.03, 577,289.43 and 227,336.40

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Solution

The fourth proportional to 418,323.03, 577,289.43 and 227,336.40 is: 313,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,323.03 : 577,289.43 = 227,336.40 : x
  2. Step 2: Convert to fraction form
    418,323.03/577,289.43 = 227,336.40/x
  3. Step 3: Cross multiply
    418,323.03x = 577,289.43 × 227,336.40
  4. Step 4: Simplify right side
    418,323.03x = 131,238,900,774.25
  5. Step 5: Solve for x
    x = 131,238,900,774.25/418,323.03
  6. Step 6: Final answer
    x = 313,726.21

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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.