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Finding the Fourth Proportional to 374,307.78, 561,401.37 and 104,442.90

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Solution

The fourth proportional to 374,307.78, 561,401.37 and 104,442.90 is: 156,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,307.78 : 561,401.37 = 104,442.90 : x
  2. Step 2: Convert to fraction form
    374,307.78/561,401.37 = 104,442.90/x
  3. Step 3: Cross multiply
    374,307.78x = 561,401.37 × 104,442.90
  4. Step 4: Simplify right side
    374,307.78x = 58,634,387,146.77
  5. Step 5: Solve for x
    x = 58,634,387,146.77/374,307.78
  6. Step 6: Final answer
    x = 156,647.52

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1.5x scale

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.