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Finding the Fourth Proportional to 418,141.93, 577,036.55 and 227,155.48

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Solution

The fourth proportional to 418,141.93, 577,036.55 and 227,155.48 is: 313,474.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,141.93 : 577,036.55 = 227,155.48 : x
  2. Step 2: Convert to fraction form
    418,141.93/577,036.55 = 227,155.48/x
  3. Step 3: Cross multiply
    418,141.93x = 577,036.55 × 227,155.48
  4. Step 4: Simplify right side
    418,141.93x = 131,077,014,492.79
  5. Step 5: Solve for x
    x = 131,077,014,492.79/418,141.93
  6. Step 6: Final answer
    x = 313,474.94

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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.