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Finding the Fourth Proportional to 346,196.80, 518,906.40 and 146,483.20

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Solution

The fourth proportional to 346,196.80, 518,906.40 and 146,483.20 is: 219,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,196.80 : 518,906.40 = 146,483.20 : x
  2. Step 2: Convert to fraction form
    346,196.80/518,906.40 = 146,483.20/x
  3. Step 3: Cross multiply
    346,196.80x = 518,906.40 × 146,483.20
  4. Step 4: Simplify right side
    346,196.80x = 76,011,069,972.48
  5. Step 5: Solve for x
    x = 76,011,069,972.48/346,196.80
  6. Step 6: Final answer
    x = 219,560.29

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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.