Home / 528,632.13-729,513.03-286,914.68

Finding the Fourth Proportional to 528,632.13, 729,513.03 and 286,914.68

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Solution

The fourth proportional to 528,632.13, 729,513.03 and 286,914.68 is: 395,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,632.13 : 729,513.03 = 286,914.68 : x
  2. Step 2: Convert to fraction form
    528,632.13/729,513.03 = 286,914.68/x
  3. Step 3: Cross multiply
    528,632.13x = 729,513.03 × 286,914.68
  4. Step 4: Simplify right side
    528,632.13x = 209,307,993,910.72
  5. Step 5: Solve for x
    x = 209,307,993,910.72/528,632.13
  6. Step 6: Final answer
    x = 395,942.63

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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.