Home / 528,654.06-729,543.44-286,936.64

Finding the Fourth Proportional to 528,654.06, 729,543.44 and 286,936.64

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Solution

The fourth proportional to 528,654.06, 729,543.44 and 286,936.64 is: 395,973.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,654.06 : 729,543.44 = 286,936.64 : x
  2. Step 2: Convert to fraction form
    528,654.06/729,543.44 = 286,936.64/x
  3. Step 3: Cross multiply
    528,654.06x = 729,543.44 × 286,936.64
  4. Step 4: Simplify right side
    528,654.06x = 209,332,743,407.64
  5. Step 5: Solve for x
    x = 209,332,743,407.64/528,654.06
  6. Step 6: Final answer
    x = 395,973.02

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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.