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Finding the Fourth Proportional to 346,803.20, 520,259.52 and 147,124.16

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Solution

The fourth proportional to 346,803.20, 520,259.52 and 147,124.16 is: 220,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,803.20 : 520,259.52 = 147,124.16 : x
  2. Step 2: Convert to fraction form
    346,803.20/520,259.52 = 147,124.16/x
  3. Step 3: Cross multiply
    346,803.20x = 520,259.52 × 147,124.16
  4. Step 4: Simplify right side
    346,803.20x = 76,542,744,862.00
  5. Step 5: Solve for x
    x = 76,542,744,862.00/346,803.20
  6. Step 6: Final answer
    x = 220,709.45

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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.