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Finding the Fourth Proportional to 570,437.05, 786,955.96 and 343,956.73

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Solution

The fourth proportional to 570,437.05, 786,955.96 and 343,956.73 is: 474,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,437.05 : 786,955.96 = 343,956.73 : x
  2. Step 2: Convert to fraction form
    570,437.05/786,955.96 = 343,956.73/x
  3. Step 3: Cross multiply
    570,437.05x = 786,955.96 × 343,956.73
  4. Step 4: Simplify right side
    570,437.05x = 270,678,798,655.61
  5. Step 5: Solve for x
    x = 270,678,798,655.61/570,437.05
  6. Step 6: Final answer
    x = 474,511.25

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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.