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Finding the Fourth Proportional to 445,818.54, 615,138.63 and 264,451.02

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Solution

The fourth proportional to 445,818.54, 615,138.63 and 264,451.02 is: 364,888.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,818.54 : 615,138.63 = 264,451.02 : x
  2. Step 2: Convert to fraction form
    445,818.54/615,138.63 = 264,451.02/x
  3. Step 3: Cross multiply
    445,818.54x = 615,138.63 × 264,451.02
  4. Step 4: Simplify right side
    445,818.54x = 162,674,038,144.90
  5. Step 5: Solve for x
    x = 162,674,038,144.90/445,818.54
  6. Step 6: Final answer
    x = 364,888.45

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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.