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Finding the Fourth Proportional to 610,884.60, 916,764.30 and 256,153.20

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Solution

The fourth proportional to 610,884.60, 916,764.30 and 256,153.20 is: 384,413.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,884.60 : 916,764.30 = 256,153.20 : x
  2. Step 2: Convert to fraction form
    610,884.60/916,764.30 = 256,153.20/x
  3. Step 3: Cross multiply
    610,884.60x = 916,764.30 × 256,153.20
  4. Step 4: Simplify right side
    610,884.60x = 234,832,109,090.76
  5. Step 5: Solve for x
    x = 234,832,109,090.76/610,884.60
  6. Step 6: Final answer
    x = 384,413.21

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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.