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Finding the Fourth Proportional to 357,080.97, 492,158.13 and 340,264.33

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Solution

The fourth proportional to 357,080.97, 492,158.13 and 340,264.33 is: 468,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,080.97 : 492,158.13 = 340,264.33 : x
  2. Step 2: Convert to fraction form
    357,080.97/492,158.13 = 340,264.33/x
  3. Step 3: Cross multiply
    357,080.97x = 492,158.13 × 340,264.33
  4. Step 4: Simplify right side
    357,080.97x = 167,463,853,852.12
  5. Step 5: Solve for x
    x = 167,463,853,852.12/357,080.97
  6. Step 6: Final answer
    x = 468,980.05

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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.