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Finding the Fourth Proportional to 699,707.92, 966,061.74 and 538,278.16

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Solution

The fourth proportional to 699,707.92, 966,061.74 and 538,278.16 is: 743,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,707.92 : 966,061.74 = 538,278.16 : x
  2. Step 2: Convert to fraction form
    699,707.92/966,061.74 = 538,278.16/x
  3. Step 3: Cross multiply
    699,707.92x = 966,061.74 × 538,278.16
  4. Step 4: Simplify right side
    699,707.92x = 520,009,935,853.60
  5. Step 5: Solve for x
    x = 520,009,935,853.60/699,707.92
  6. Step 6: Final answer
    x = 743,181.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.