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Finding the Fourth Proportional to 528,071.60, 792,107.40 and 173,097.20

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Solution

The fourth proportional to 528,071.60, 792,107.40 and 173,097.20 is: 259,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,071.60 : 792,107.40 = 173,097.20 : x
  2. Step 2: Convert to fraction form
    528,071.60/792,107.40 = 173,097.20/x
  3. Step 3: Cross multiply
    528,071.60x = 792,107.40 × 173,097.20
  4. Step 4: Simplify right side
    528,071.60x = 137,111,573,039.28
  5. Step 5: Solve for x
    x = 137,111,573,039.28/528,071.60
  6. Step 6: Final answer
    x = 259,645.80

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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.