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Finding the Fourth Proportional to 553,635.60, 830,453.40 and 453,908.40

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Solution

The fourth proportional to 553,635.60, 830,453.40 and 453,908.40 is: 680,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,635.60 : 830,453.40 = 453,908.40 : x
  2. Step 2: Convert to fraction form
    553,635.60/830,453.40 = 453,908.40/x
  3. Step 3: Cross multiply
    553,635.60x = 830,453.40 × 453,908.40
  4. Step 4: Simplify right side
    553,635.60x = 376,949,774,068.56
  5. Step 5: Solve for x
    x = 376,949,774,068.56/553,635.60
  6. Step 6: Final answer
    x = 680,862.60

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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.