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Finding the Fourth Proportional to 346,502.20, 519,753.30 and 320,582.20

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Solution

The fourth proportional to 346,502.20, 519,753.30 and 320,582.20 is: 480,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,502.20 : 519,753.30 = 320,582.20 : x
  2. Step 2: Convert to fraction form
    346,502.20/519,753.30 = 320,582.20/x
  3. Step 3: Cross multiply
    346,502.20x = 519,753.30 × 320,582.20
  4. Step 4: Simplify right side
    346,502.20x = 166,623,656,371.26
  5. Step 5: Solve for x
    x = 166,623,656,371.26/346,502.20
  6. Step 6: Final answer
    x = 480,873.30

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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.