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Finding the Fourth Proportional to 405,176.72, 559,502.52 and 252,475.52

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Solution

The fourth proportional to 405,176.72, 559,502.52 and 252,475.52 is: 348,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,176.72 : 559,502.52 = 252,475.52 : x
  2. Step 2: Convert to fraction form
    405,176.72/559,502.52 = 252,475.52/x
  3. Step 3: Cross multiply
    405,176.72x = 559,502.52 × 252,475.52
  4. Step 4: Simplify right side
    405,176.72x = 141,260,689,678.31
  5. Step 5: Solve for x
    x = 141,260,689,678.31/405,176.72
  6. Step 6: Final answer
    x = 348,639.70

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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.