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Finding the Fourth Proportional to 348,549.38, 480,996.78 and 195,587.21

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Solution

The fourth proportional to 348,549.38, 480,996.78 and 195,587.21 is: 269,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,549.38 : 480,996.78 = 195,587.21 : x
  2. Step 2: Convert to fraction form
    348,549.38/480,996.78 = 195,587.21/x
  3. Step 3: Cross multiply
    348,549.38x = 480,996.78 × 195,587.21
  4. Step 4: Simplify right side
    348,549.38x = 94,076,818,219.18
  5. Step 5: Solve for x
    x = 94,076,818,219.18/348,549.38
  6. Step 6: Final answer
    x = 269,909.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.