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Finding the Fourth Proportional to 564,039.01, 845,637.74 and 339,346.80

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Solution

The fourth proportional to 564,039.01, 845,637.74 and 339,346.80 is: 508,767.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,039.01 : 845,637.74 = 339,346.80 : x
  2. Step 2: Convert to fraction form
    564,039.01/845,637.74 = 339,346.80/x
  3. Step 3: Cross multiply
    564,039.01x = 845,637.74 × 339,346.80
  4. Step 4: Simplify right side
    564,039.01x = 286,964,460,604.05
  5. Step 5: Solve for x
    x = 286,964,460,604.05/564,039.01
  6. Step 6: Final answer
    x = 508,767.04

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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.