Home / 627,731.32-865,989.48-418,236.16

Finding the Fourth Proportional to 627,731.32, 865,989.48 and 418,236.16

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Solution

The fourth proportional to 627,731.32, 865,989.48 and 418,236.16 is: 576,979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,731.32 : 865,989.48 = 418,236.16 : x
  2. Step 2: Convert to fraction form
    627,731.32/865,989.48 = 418,236.16/x
  3. Step 3: Cross multiply
    627,731.32x = 865,989.48 × 418,236.16
  4. Step 4: Simplify right side
    627,731.32x = 362,188,114,715.60
  5. Step 5: Solve for x
    x = 362,188,114,715.60/627,731.32
  6. Step 6: Final answer
    x = 576,979.52

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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.