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Finding the Fourth Proportional to 662,112.55, 913,652.16 and 371,657.59

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Solution

The fourth proportional to 662,112.55, 913,652.16 and 371,657.59 is: 512,852.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,112.55 : 913,652.16 = 371,657.59 : x
  2. Step 2: Convert to fraction form
    662,112.55/913,652.16 = 371,657.59/x
  3. Step 3: Cross multiply
    662,112.55x = 913,652.16 × 371,657.59
  4. Step 4: Simplify right side
    662,112.55x = 339,565,759,883.89
  5. Step 5: Solve for x
    x = 339,565,759,883.89/662,112.55
  6. Step 6: Final answer
    x = 512,852.02

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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.