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Finding the Fourth Proportional to 496,656.90, 744,985.35 and 260,072.10

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Solution

The fourth proportional to 496,656.90, 744,985.35 and 260,072.10 is: 390,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,656.90 : 744,985.35 = 260,072.10 : x
  2. Step 2: Convert to fraction form
    496,656.90/744,985.35 = 260,072.10/x
  3. Step 3: Cross multiply
    496,656.90x = 744,985.35 × 260,072.10
  4. Step 4: Simplify right side
    496,656.90x = 193,749,904,443.74
  5. Step 5: Solve for x
    x = 193,749,904,443.74/496,656.90
  6. Step 6: Final answer
    x = 390,108.15

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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.