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Finding the Fourth Proportional to 346,062.80, 518,535.30 and 195,856.40

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Solution

The fourth proportional to 346,062.80, 518,535.30 and 195,856.40 is: 293,468.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,062.80 : 518,535.30 = 195,856.40 : x
  2. Step 2: Convert to fraction form
    346,062.80/518,535.30 = 195,856.40/x
  3. Step 3: Cross multiply
    346,062.80x = 518,535.30 × 195,856.40
  4. Step 4: Simplify right side
    346,062.80x = 101,558,457,130.92
  5. Step 5: Solve for x
    x = 101,558,457,130.92/346,062.80
  6. Step 6: Final answer
    x = 293,468.29

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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.