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Finding the Fourth Proportional to 611,671.57, 917,507.37 and 190,983.49

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Solution

The fourth proportional to 611,671.57, 917,507.37 and 190,983.49 is: 286,475.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,671.57 : 917,507.37 = 190,983.49 : x
  2. Step 2: Convert to fraction form
    611,671.57/917,507.37 = 190,983.49/x
  3. Step 3: Cross multiply
    611,671.57x = 917,507.37 × 190,983.49
  4. Step 4: Simplify right side
    611,671.57x = 175,228,759,623.32
  5. Step 5: Solve for x
    x = 175,228,759,623.32/611,671.57
  6. Step 6: Final answer
    x = 286,475.24

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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.