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Finding the Fourth Proportional to 418,368.87, 577,345.59 and 227,383.47

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Solution

The fourth proportional to 418,368.87, 577,345.59 and 227,383.47 is: 313,787.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,368.87 : 577,345.59 = 227,383.47 : x
  2. Step 2: Convert to fraction form
    418,368.87/577,345.59 = 227,383.47/x
  3. Step 3: Cross multiply
    418,368.87x = 577,345.59 × 227,383.47
  4. Step 4: Simplify right side
    418,368.87x = 131,278,843,643.40
  5. Step 5: Solve for x
    x = 131,278,843,643.40/418,368.87
  6. Step 6: Final answer
    x = 313,787.31

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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.