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Finding the Fourth Proportional to 346,765.50, 520,148.25 and 97,447.50

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Solution

The fourth proportional to 346,765.50, 520,148.25 and 97,447.50 is: 146,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,765.50 : 520,148.25 = 97,447.50 : x
  2. Step 2: Convert to fraction form
    346,765.50/520,148.25 = 97,447.50/x
  3. Step 3: Cross multiply
    346,765.50x = 520,148.25 × 97,447.50
  4. Step 4: Simplify right side
    346,765.50x = 50,687,146,591.88
  5. Step 5: Solve for x
    x = 50,687,146,591.88/346,765.50
  6. Step 6: Final answer
    x = 146,171.25

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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.