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Finding the Fourth Proportional to 547,987.68, 821,981.64 and 358,607.52

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Solution

The fourth proportional to 547,987.68, 821,981.64 and 358,607.52 is: 537,911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,987.68 : 821,981.64 = 358,607.52 : x
  2. Step 2: Convert to fraction form
    547,987.68/821,981.64 = 358,607.52/x
  3. Step 3: Cross multiply
    547,987.68x = 821,981.64 × 358,607.52
  4. Step 4: Simplify right side
    547,987.68x = 294,768,797,405.93
  5. Step 5: Solve for x
    x = 294,768,797,405.93/547,987.68
  6. Step 6: Final answer
    x = 537,911.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.