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Finding the Fourth Proportional to 553,359.40, 830,039.10 and 454,944.40

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Solution

The fourth proportional to 553,359.40, 830,039.10 and 454,944.40 is: 682,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,359.40 : 830,039.10 = 454,944.40 : x
  2. Step 2: Convert to fraction form
    553,359.40/830,039.10 = 454,944.40/x
  3. Step 3: Cross multiply
    553,359.40x = 830,039.10 × 454,944.40
  4. Step 4: Simplify right side
    553,359.40x = 377,621,640,326.04
  5. Step 5: Solve for x
    x = 377,621,640,326.04/553,359.40
  6. Step 6: Final answer
    x = 682,416.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.