Home / 528,698.57-729,584.21-286,975.94

Finding the Fourth Proportional to 528,698.57, 729,584.21 and 286,975.94

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Solution

The fourth proportional to 528,698.57, 729,584.21 and 286,975.94 is: 396,016.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,698.57 : 729,584.21 = 286,975.94 : x
  2. Step 2: Convert to fraction form
    528,698.57/729,584.21 = 286,975.94/x
  3. Step 3: Cross multiply
    528,698.57x = 729,584.21 × 286,975.94
  4. Step 4: Simplify right side
    528,698.57x = 209,373,111,543.43
  5. Step 5: Solve for x
    x = 209,373,111,543.43/528,698.57
  6. Step 6: Final answer
    x = 396,016.04

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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.