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Finding the Fourth Proportional to 536,820.66, 740,884.05 and 346,388.85

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Solution

The fourth proportional to 536,820.66, 740,884.05 and 346,388.85 is: 478,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,820.66 : 740,884.05 = 346,388.85 : x
  2. Step 2: Convert to fraction form
    536,820.66/740,884.05 = 346,388.85/x
  3. Step 3: Cross multiply
    536,820.66x = 740,884.05 × 346,388.85
  4. Step 4: Simplify right side
    536,820.66x = 256,633,974,062.84
  5. Step 5: Solve for x
    x = 256,633,974,062.84/536,820.66
  6. Step 6: Final answer
    x = 478,062.77

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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.