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Finding the Fourth Proportional to 524,653.46, 724,054.77 and 317,939.94

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Solution

The fourth proportional to 524,653.46, 724,054.77 and 317,939.94 is: 438,777.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,653.46 : 724,054.77 = 317,939.94 : x
  2. Step 2: Convert to fraction form
    524,653.46/724,054.77 = 317,939.94/x
  3. Step 3: Cross multiply
    524,653.46x = 724,054.77 × 317,939.94
  4. Step 4: Simplify right side
    524,653.46x = 230,205,930,130.51
  5. Step 5: Solve for x
    x = 230,205,930,130.51/524,653.46
  6. Step 6: Final answer
    x = 438,777.12

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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.