Home / 319,329.27-440,685.03-174,142.99

Finding the Fourth Proportional to 319,329.27, 440,685.03 and 174,142.99

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Solution

The fourth proportional to 319,329.27, 440,685.03 and 174,142.99 is: 240,323.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,329.27 : 440,685.03 = 174,142.99 : x
  2. Step 2: Convert to fraction form
    319,329.27/440,685.03 = 174,142.99/x
  3. Step 3: Cross multiply
    319,329.27x = 440,685.03 × 174,142.99
  4. Step 4: Simplify right side
    319,329.27x = 76,742,209,438.79
  5. Step 5: Solve for x
    x = 76,742,209,438.79/319,329.27
  6. Step 6: Final answer
    x = 240,323.13

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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.