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Finding the Fourth Proportional to 519,345.75, 716,699.06 and 289,898.93

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Solution

The fourth proportional to 519,345.75, 716,699.06 and 289,898.93 is: 400,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,345.75 : 716,699.06 = 289,898.93 : x
  2. Step 2: Convert to fraction form
    519,345.75/716,699.06 = 289,898.93/x
  3. Step 3: Cross multiply
    519,345.75x = 716,699.06 × 289,898.93
  4. Step 4: Simplify right side
    519,345.75x = 207,770,285,593.02
  5. Step 5: Solve for x
    x = 207,770,285,593.02/519,345.75
  6. Step 6: Final answer
    x = 400,061.59

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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.