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Finding the Fourth Proportional to 517,812.13, 714,801.68 and 348,144.67

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Solution

The fourth proportional to 517,812.13, 714,801.68 and 348,144.67 is: 480,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,812.13 : 714,801.68 = 348,144.67 : x
  2. Step 2: Convert to fraction form
    517,812.13/714,801.68 = 348,144.67/x
  3. Step 3: Cross multiply
    517,812.13x = 714,801.68 × 348,144.67
  4. Step 4: Simplify right side
    517,812.13x = 248,854,394,999.05
  5. Step 5: Solve for x
    x = 248,854,394,999.05/517,812.13
  6. Step 6: Final answer
    x = 480,588.19

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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.