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Finding the Fourth Proportional to 836,776.56, 1,154,755.80 and 454,810.80

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Solution

The fourth proportional to 836,776.56, 1,154,755.80 and 454,810.80 is: 627,641.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,776.56 : 1,154,755.80 = 454,810.80 : x
  2. Step 2: Convert to fraction form
    836,776.56/1,154,755.80 = 454,810.80/x
  3. Step 3: Cross multiply
    836,776.56x = 1,154,755.80 × 454,810.80
  4. Step 4: Simplify right side
    836,776.56x = 525,195,409,202.64
  5. Step 5: Solve for x
    x = 525,195,409,202.64/836,776.56
  6. Step 6: Final answer
    x = 627,641.16

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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.