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Finding the Fourth Proportional to 524,091.90, 723,036.83 and 330,435.93

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Solution

The fourth proportional to 524,091.90, 723,036.83 and 330,435.93 is: 455,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,091.90 : 723,036.83 = 330,435.93 : x
  2. Step 2: Convert to fraction form
    524,091.90/723,036.83 = 330,435.93/x
  3. Step 3: Cross multiply
    524,091.90x = 723,036.83 × 330,435.93
  4. Step 4: Simplify right side
    524,091.90x = 238,917,345,693.12
  5. Step 5: Solve for x
    x = 238,917,345,693.12/524,091.90
  6. Step 6: Final answer
    x = 455,869.18

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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.