Home / 405,251.12-607,869.96-155,987.12

Finding the Fourth Proportional to 405,251.12, 607,869.96 and 155,987.12

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Solution

The fourth proportional to 405,251.12, 607,869.96 and 155,987.12 is: 233,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,251.12 : 607,869.96 = 155,987.12 : x
  2. Step 2: Convert to fraction form
    405,251.12/607,869.96 = 155,987.12/x
  3. Step 3: Cross multiply
    405,251.12x = 607,869.96 × 155,987.12
  4. Step 4: Simplify right side
    405,251.12x = 94,819,884,394.92
  5. Step 5: Solve for x
    x = 94,819,884,394.92/405,251.12
  6. Step 6: Final answer
    x = 233,978.09

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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.