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Finding the Fourth Proportional to 455,432.07, 628,551.68 and 264,445.47

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Solution

The fourth proportional to 455,432.07, 628,551.68 and 264,445.47 is: 364,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,432.07 : 628,551.68 = 264,445.47 : x
  2. Step 2: Convert to fraction form
    455,432.07/628,551.68 = 264,445.47/x
  3. Step 3: Cross multiply
    455,432.07x = 628,551.68 × 264,445.47
  4. Step 4: Simplify right side
    455,432.07x = 166,217,643,114.66
  5. Step 5: Solve for x
    x = 166,217,643,114.66/455,432.07
  6. Step 6: Final answer
    x = 364,966.93

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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.