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Finding the Fourth Proportional to 589,133.17, 813,009.18 and 334,489.78

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Solution

The fourth proportional to 589,133.17, 813,009.18 and 334,489.78 is: 461,598.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,133.17 : 813,009.18 = 334,489.78 : x
  2. Step 2: Convert to fraction form
    589,133.17/813,009.18 = 334,489.78/x
  3. Step 3: Cross multiply
    589,133.17x = 813,009.18 × 334,489.78
  4. Step 4: Simplify right side
    589,133.17x = 271,943,261,756.18
  5. Step 5: Solve for x
    x = 271,943,261,756.18/589,133.17
  6. Step 6: Final answer
    x = 461,598.97

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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.