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Finding the Fourth Proportional to 592,411.26, 817,523.73 and 320,478.06

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Solution

The fourth proportional to 592,411.26, 817,523.73 and 320,478.06 is: 442,257.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,411.26 : 817,523.73 = 320,478.06 : x
  2. Step 2: Convert to fraction form
    592,411.26/817,523.73 = 320,478.06/x
  3. Step 3: Cross multiply
    592,411.26x = 817,523.73 × 320,478.06
  4. Step 4: Simplify right side
    592,411.26x = 261,998,418,994.36
  5. Step 5: Solve for x
    x = 261,998,418,994.36/592,411.26
  6. Step 6: Final answer
    x = 442,257.66

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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.