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Finding the Fourth Proportional to 283,359.61, 391,035.65 and 154,296.08

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Solution

The fourth proportional to 283,359.61, 391,035.65 and 154,296.08 is: 212,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,359.61 : 391,035.65 = 154,296.08 : x
  2. Step 2: Convert to fraction form
    283,359.61/391,035.65 = 154,296.08/x
  3. Step 3: Cross multiply
    283,359.61x = 391,035.65 × 154,296.08
  4. Step 4: Simplify right side
    283,359.61x = 60,335,265,208.59
  5. Step 5: Solve for x
    x = 60,335,265,208.59/283,359.61
  6. Step 6: Final answer
    x = 212,928.25

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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.