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Finding the Fourth Proportional to 570,062.39, 786,343.37 and 376,471.87

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Solution

The fourth proportional to 570,062.39, 786,343.37 and 376,471.87 is: 519,304.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,062.39 : 786,343.37 = 376,471.87 : x
  2. Step 2: Convert to fraction form
    570,062.39/786,343.37 = 376,471.87/x
  3. Step 3: Cross multiply
    570,062.39x = 786,343.37 × 376,471.87
  4. Step 4: Simplify right side
    570,062.39x = 296,036,155,117.78
  5. Step 5: Solve for x
    x = 296,036,155,117.78/570,062.39
  6. Step 6: Final answer
    x = 519,304.84

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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.