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Finding the Fourth Proportional to 488,803.10, 733,260.02 and 438,574.59

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Solution

The fourth proportional to 488,803.10, 733,260.02 and 438,574.59 is: 657,911.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,803.10 : 733,260.02 = 438,574.59 : x
  2. Step 2: Convert to fraction form
    488,803.10/733,260.02 = 438,574.59/x
  3. Step 3: Cross multiply
    488,803.10x = 733,260.02 × 438,574.59
  4. Step 4: Simplify right side
    488,803.10x = 321,589,210,442.02
  5. Step 5: Solve for x
    x = 321,589,210,442.02/488,803.10
  6. Step 6: Final answer
    x = 657,911.57

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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.