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Finding the Fourth Proportional to 357,059.67, 492,879.48 and 242,389.56

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Solution

The fourth proportional to 357,059.67, 492,879.48 and 242,389.56 is: 334,590.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,059.67 : 492,879.48 = 242,389.56 : x
  2. Step 2: Convert to fraction form
    357,059.67/492,879.48 = 242,389.56/x
  3. Step 3: Cross multiply
    357,059.67x = 492,879.48 × 242,389.56
  4. Step 4: Simplify right side
    357,059.67x = 119,468,842,593.01
  5. Step 5: Solve for x
    x = 119,468,842,593.01/357,059.67
  6. Step 6: Final answer
    x = 334,590.69

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1.5x scale

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.