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Finding the Fourth Proportional to 524,891.51, 724,122.13 and 320,950.92

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Solution

The fourth proportional to 524,891.51, 724,122.13 and 320,950.92 is: 442,772.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,891.51 : 724,122.13 = 320,950.92 : x
  2. Step 2: Convert to fraction form
    524,891.51/724,122.13 = 320,950.92/x
  3. Step 3: Cross multiply
    524,891.51x = 724,122.13 × 320,950.92
  4. Step 4: Simplify right side
    524,891.51x = 232,407,666,330.72
  5. Step 5: Solve for x
    x = 232,407,666,330.72/524,891.51
  6. Step 6: Final answer
    x = 442,772.77

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1.5x scale

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.