Home / 614,467.80-921,831.30-193,786.20

Finding the Fourth Proportional to 614,467.80, 921,831.30 and 193,786.20

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Solution

The fourth proportional to 614,467.80, 921,831.30 and 193,786.20 is: 290,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,467.80 : 921,831.30 = 193,786.20 : x
  2. Step 2: Convert to fraction form
    614,467.80/921,831.30 = 193,786.20/x
  3. Step 3: Cross multiply
    614,467.80x = 921,831.30 × 193,786.20
  4. Step 4: Simplify right side
    614,467.80x = 178,638,184,668.06
  5. Step 5: Solve for x
    x = 178,638,184,668.06/614,467.80
  6. Step 6: Final answer
    x = 290,720.17

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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.