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Finding the Fourth Proportional to 586,215.76, 808,995.36 and 331,561.84

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Solution

The fourth proportional to 586,215.76, 808,995.36 and 331,561.84 is: 457,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,215.76 : 808,995.36 = 331,561.84 : x
  2. Step 2: Convert to fraction form
    586,215.76/808,995.36 = 331,561.84/x
  3. Step 3: Cross multiply
    586,215.76x = 808,995.36 × 331,561.84
  4. Step 4: Simplify right side
    586,215.76x = 268,231,990,113.06
  5. Step 5: Solve for x
    x = 268,231,990,113.06/586,215.76
  6. Step 6: Final answer
    x = 457,565.30

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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.