Home / 382,632.39-528,090.48-221,592.69

Finding the Fourth Proportional to 382,632.39, 528,090.48 and 221,592.69

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Solution

The fourth proportional to 382,632.39, 528,090.48 and 221,592.69 is: 305,831.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,632.39 : 528,090.48 = 221,592.69 : x
  2. Step 2: Convert to fraction form
    382,632.39/528,090.48 = 221,592.69/x
  3. Step 3: Cross multiply
    382,632.39x = 528,090.48 × 221,592.69
  4. Step 4: Simplify right side
    382,632.39x = 117,020,990,026.59
  5. Step 5: Solve for x
    x = 117,020,990,026.59/382,632.39
  6. Step 6: Final answer
    x = 305,831.38

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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.