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Finding the Fourth Proportional to 310,459.40, 465,357.52 and 177,052.40

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Solution

The fourth proportional to 310,459.40, 465,357.52 and 177,052.40 is: 265,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,459.40 : 465,357.52 = 177,052.40 : x
  2. Step 2: Convert to fraction form
    310,459.40/465,357.52 = 177,052.40/x
  3. Step 3: Cross multiply
    310,459.40x = 465,357.52 × 177,052.40
  4. Step 4: Simplify right side
    310,459.40x = 82,392,665,774.05
  5. Step 5: Solve for x
    x = 82,392,665,774.05/310,459.40
  6. Step 6: Final answer
    x = 265,389.50

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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.