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Finding the Fourth Proportional to 434,550.40, 651,825.60 and 185,718.40

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Solution

The fourth proportional to 434,550.40, 651,825.60 and 185,718.40 is: 278,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,550.40 : 651,825.60 = 185,718.40 : x
  2. Step 2: Convert to fraction form
    434,550.40/651,825.60 = 185,718.40/x
  3. Step 3: Cross multiply
    434,550.40x = 651,825.60 × 185,718.40
  4. Step 4: Simplify right side
    434,550.40x = 121,056,007,511.04
  5. Step 5: Solve for x
    x = 121,056,007,511.04/434,550.40
  6. Step 6: Final answer
    x = 278,577.60

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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.