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Finding the Fourth Proportional to 570,158.38, 786,765.16 and 340,669.98

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Solution

The fourth proportional to 570,158.38, 786,765.16 and 340,669.98 is: 470,092.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,158.38 : 786,765.16 = 340,669.98 : x
  2. Step 2: Convert to fraction form
    570,158.38/786,765.16 = 340,669.98/x
  3. Step 3: Cross multiply
    570,158.38x = 786,765.16 × 340,669.98
  4. Step 4: Simplify right side
    570,158.38x = 268,027,271,321.90
  5. Step 5: Solve for x
    x = 268,027,271,321.90/570,158.38
  6. Step 6: Final answer
    x = 470,092.66

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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.