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Finding the Fourth Proportional to 616,415.32, 850,914.99 and 374,775.04

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Solution

The fourth proportional to 616,415.32, 850,914.99 and 374,775.04 is: 517,348.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,415.32 : 850,914.99 = 374,775.04 : x
  2. Step 2: Convert to fraction form
    616,415.32/850,914.99 = 374,775.04/x
  3. Step 3: Cross multiply
    616,415.32x = 850,914.99 × 374,775.04
  4. Step 4: Simplify right side
    616,415.32x = 318,901,699,413.85
  5. Step 5: Solve for x
    x = 318,901,699,413.85/616,415.32
  6. Step 6: Final answer
    x = 517,348.76

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1.5x scale

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.