Home / 345,918.30-518,877.45-188,454.30

Finding the Fourth Proportional to 345,918.30, 518,877.45 and 188,454.30

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Solution

The fourth proportional to 345,918.30, 518,877.45 and 188,454.30 is: 282,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,918.30 : 518,877.45 = 188,454.30 : x
  2. Step 2: Convert to fraction form
    345,918.30/518,877.45 = 188,454.30/x
  3. Step 3: Cross multiply
    345,918.30x = 518,877.45 × 188,454.30
  4. Step 4: Simplify right side
    345,918.30x = 97,784,686,625.54
  5. Step 5: Solve for x
    x = 97,784,686,625.54/345,918.30
  6. Step 6: Final answer
    x = 282,681.45

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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.