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Finding the Fourth Proportional to 418,554.40, 577,606.32 and 227,568.52

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Solution

The fourth proportional to 418,554.40, 577,606.32 and 227,568.52 is: 314,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,554.40 : 577,606.32 = 227,568.52 : x
  2. Step 2: Convert to fraction form
    418,554.40/577,606.32 = 227,568.52/x
  3. Step 3: Cross multiply
    418,554.40x = 577,606.32 × 227,568.52
  4. Step 4: Simplify right side
    418,554.40x = 131,445,015,385.05
  5. Step 5: Solve for x
    x = 131,445,015,385.05/418,554.40
  6. Step 6: Final answer
    x = 314,045.24

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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.