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Finding the Fourth Proportional to 673,934.47, 930,067.56 and 368,039.32

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Solution

The fourth proportional to 673,934.47, 930,067.56 and 368,039.32 is: 507,915.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,934.47 : 930,067.56 = 368,039.32 : x
  2. Step 2: Convert to fraction form
    673,934.47/930,067.56 = 368,039.32/x
  3. Step 3: Cross multiply
    673,934.47x = 930,067.56 × 368,039.32
  4. Step 4: Simplify right side
    673,934.47x = 342,301,432,336.46
  5. Step 5: Solve for x
    x = 342,301,432,336.46/673,934.47
  6. Step 6: Final answer
    x = 507,915.01

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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.