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Finding the Fourth Proportional to 614,391.58, 921,712.81 and 348,270.94

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Solution

The fourth proportional to 614,391.58, 921,712.81 and 348,270.94 is: 522,477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,391.58 : 921,712.81 = 348,270.94 : x
  2. Step 2: Convert to fraction form
    614,391.58/921,712.81 = 348,270.94/x
  3. Step 3: Cross multiply
    614,391.58x = 921,712.81 × 348,270.94
  4. Step 4: Simplify right side
    614,391.58x = 321,005,786,748.74
  5. Step 5: Solve for x
    x = 321,005,786,748.74/614,391.58
  6. Step 6: Final answer
    x = 522,477.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.