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Finding the Fourth Proportional to 570,102.57, 786,687.98 and 385,966.58

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Solution

The fourth proportional to 570,102.57, 786,687.98 and 385,966.58 is: 532,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,102.57 : 786,687.98 = 385,966.58 : x
  2. Step 2: Convert to fraction form
    570,102.57/786,687.98 = 385,966.58/x
  3. Step 3: Cross multiply
    570,102.57x = 786,687.98 × 385,966.58
  4. Step 4: Simplify right side
    570,102.57x = 303,635,263,304.44
  5. Step 5: Solve for x
    x = 303,635,263,304.44/570,102.57
  6. Step 6: Final answer
    x = 532,597.60

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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.