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Finding the Fourth Proportional to 401,437.54, 602,257.56 and 283,339.54

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Solution

The fourth proportional to 401,437.54, 602,257.56 and 283,339.54 is: 425,080.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,437.54 : 602,257.56 = 283,339.54 : x
  2. Step 2: Convert to fraction form
    401,437.54/602,257.56 = 283,339.54/x
  3. Step 3: Cross multiply
    401,437.54x = 602,257.56 × 283,339.54
  4. Step 4: Simplify right side
    401,437.54x = 170,643,380,011.92
  5. Step 5: Solve for x
    x = 170,643,380,011.92/401,437.54
  6. Step 6: Final answer
    x = 425,080.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.