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Finding the Fourth Proportional to 348,040.90, 486,207.50 and 348,040.90

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Solution

The fourth proportional to 348,040.90, 486,207.50 and 348,040.90 is: 486,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,040.90 : 486,207.50 = 348,040.90 : x
  2. Step 2: Convert to fraction form
    348,040.90/486,207.50 = 348,040.90/x
  3. Step 3: Cross multiply
    348,040.90x = 486,207.50 × 348,040.90
  4. Step 4: Simplify right side
    348,040.90x = 169,220,095,886.75
  5. Step 5: Solve for x
    x = 169,220,095,886.75/348,040.90
  6. Step 6: Final answer
    x = 486,207.50

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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.