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Finding the Fourth Proportional to 348,047.70, 486,085.80 and 348,047.70

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Solution

The fourth proportional to 348,047.70, 486,085.80 and 348,047.70 is: 486,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,047.70 : 486,085.80 = 348,047.70 : x
  2. Step 2: Convert to fraction form
    348,047.70/486,085.80 = 348,047.70/x
  3. Step 3: Cross multiply
    348,047.70x = 486,085.80 × 348,047.70
  4. Step 4: Simplify right side
    348,047.70x = 169,181,044,692.66
  5. Step 5: Solve for x
    x = 169,181,044,692.66/348,047.70
  6. Step 6: Final answer
    x = 486,085.80

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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.