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Finding the Fourth Proportional to 530,935.40, 796,403.10 and 156,958.40

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Solution

The fourth proportional to 530,935.40, 796,403.10 and 156,958.40 is: 235,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,935.40 : 796,403.10 = 156,958.40 : x
  2. Step 2: Convert to fraction form
    530,935.40/796,403.10 = 156,958.40/x
  3. Step 3: Cross multiply
    530,935.40x = 796,403.10 × 156,958.40
  4. Step 4: Simplify right side
    530,935.40x = 125,002,156,331.04
  5. Step 5: Solve for x
    x = 125,002,156,331.04/530,935.40
  6. Step 6: Final answer
    x = 235,437.60

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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.