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Finding the Fourth Proportional to 505,403.70, 758,105.55 and 464,069.40

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Solution

The fourth proportional to 505,403.70, 758,105.55 and 464,069.40 is: 696,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,403.70 : 758,105.55 = 464,069.40 : x
  2. Step 2: Convert to fraction form
    505,403.70/758,105.55 = 464,069.40/x
  3. Step 3: Cross multiply
    505,403.70x = 758,105.55 × 464,069.40
  4. Step 4: Simplify right side
    505,403.70x = 351,813,587,725.17
  5. Step 5: Solve for x
    x = 351,813,587,725.17/505,403.70
  6. Step 6: Final answer
    x = 696,104.10

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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.