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Finding the Fourth Proportional to 592,653.80, 817,864.74 and 320,721.71

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Solution

The fourth proportional to 592,653.80, 817,864.74 and 320,721.71 is: 442,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,653.80 : 817,864.74 = 320,721.71 : x
  2. Step 2: Convert to fraction form
    592,653.80/817,864.74 = 320,721.71/x
  3. Step 3: Cross multiply
    592,653.80x = 817,864.74 × 320,721.71
  4. Step 4: Simplify right side
    592,653.80x = 262,306,975,515.94
  5. Step 5: Solve for x
    x = 262,306,975,515.94/592,653.80
  6. Step 6: Final answer
    x = 442,597.31

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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.