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Finding the Fourth Proportional to 571,690.40, 857,535.60 and 197,751.20

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Solution

The fourth proportional to 571,690.40, 857,535.60 and 197,751.20 is: 296,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,690.40 : 857,535.60 = 197,751.20 : x
  2. Step 2: Convert to fraction form
    571,690.40/857,535.60 = 197,751.20/x
  3. Step 3: Cross multiply
    571,690.40x = 857,535.60 × 197,751.20
  4. Step 4: Simplify right side
    571,690.40x = 169,578,693,942.72
  5. Step 5: Solve for x
    x = 169,578,693,942.72/571,690.40
  6. Step 6: Final answer
    x = 296,626.80

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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.