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Finding the Fourth Proportional to 348,042.90, 486,210.30 and 348,042.90

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Solution

The fourth proportional to 348,042.90, 486,210.30 and 348,042.90 is: 486,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,042.90 : 486,210.30 = 348,042.90 : x
  2. Step 2: Convert to fraction form
    348,042.90/486,210.30 = 348,042.90/x
  3. Step 3: Cross multiply
    348,042.90x = 486,210.30 × 348,042.90
  4. Step 4: Simplify right side
    348,042.90x = 169,222,042,821.87
  5. Step 5: Solve for x
    x = 169,222,042,821.87/348,042.90
  6. Step 6: Final answer
    x = 486,210.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.