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Finding the Fourth Proportional to 346,082.40, 519,220.80 and 146,498.40

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Solution

The fourth proportional to 346,082.40, 519,220.80 and 146,498.40 is: 219,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,082.40 : 519,220.80 = 146,498.40 : x
  2. Step 2: Convert to fraction form
    346,082.40/519,220.80 = 146,498.40/x
  3. Step 3: Cross multiply
    346,082.40x = 519,220.80 × 146,498.40
  4. Step 4: Simplify right side
    346,082.40x = 76,065,016,446.72
  5. Step 5: Solve for x
    x = 76,065,016,446.72/346,082.40
  6. Step 6: Final answer
    x = 219,788.75

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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.