Home / 528,632.26-729,513.20-286,914.80

Finding the Fourth Proportional to 528,632.26, 729,513.20 and 286,914.80

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Solution

The fourth proportional to 528,632.26, 729,513.20 and 286,914.80 is: 395,942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,632.26 : 729,513.20 = 286,914.80 : x
  2. Step 2: Convert to fraction form
    528,632.26/729,513.20 = 286,914.80/x
  3. Step 3: Cross multiply
    528,632.26x = 729,513.20 × 286,914.80
  4. Step 4: Simplify right side
    528,632.26x = 209,308,132,440.79
  5. Step 5: Solve for x
    x = 209,308,132,440.79/528,632.26
  6. Step 6: Final answer
    x = 395,942.79

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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.