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Finding the Fourth Proportional to 348,547.80, 522,821.70 and 329,194.20

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Solution

The fourth proportional to 348,547.80, 522,821.70 and 329,194.20 is: 493,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,547.80 : 522,821.70 = 329,194.20 : x
  2. Step 2: Convert to fraction form
    348,547.80/522,821.70 = 329,194.20/x
  3. Step 3: Cross multiply
    348,547.80x = 522,821.70 × 329,194.20
  4. Step 4: Simplify right side
    348,547.80x = 172,109,871,274.14
  5. Step 5: Solve for x
    x = 172,109,871,274.14/348,547.80
  6. Step 6: Final answer
    x = 493,791.30

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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.