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Finding the Fourth Proportional to 713,605.46, 1,070,411.76 and 181,126.64

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Solution

The fourth proportional to 713,605.46, 1,070,411.76 and 181,126.64 is: 271,690.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,605.46 : 1,070,411.76 = 181,126.64 : x
  2. Step 2: Convert to fraction form
    713,605.46/1,070,411.76 = 181,126.64/x
  3. Step 3: Cross multiply
    713,605.46x = 1,070,411.76 × 181,126.64
  4. Step 4: Simplify right side
    713,605.46x = 193,880,088,181.32
  5. Step 5: Solve for x
    x = 193,880,088,181.32/713,605.46
  6. Step 6: Final answer
    x = 271,690.87

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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.