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Finding the Fourth Proportional to 585,788.81, 808,354.55 and 324,128.84

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Solution

The fourth proportional to 585,788.81, 808,354.55 and 324,128.84 is: 447,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,788.81 : 808,354.55 = 324,128.84 : x
  2. Step 2: Convert to fraction form
    585,788.81/808,354.55 = 324,128.84/x
  3. Step 3: Cross multiply
    585,788.81x = 808,354.55 × 324,128.84
  4. Step 4: Simplify right side
    585,788.81x = 262,011,019,368.77
  5. Step 5: Solve for x
    x = 262,011,019,368.77/585,788.81
  6. Step 6: Final answer
    x = 447,278.98

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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.