Home / 528,618.07-729,499.94-286,903.54

Finding the Fourth Proportional to 528,618.07, 729,499.94 and 286,903.54

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Solution

The fourth proportional to 528,618.07, 729,499.94 and 286,903.54 is: 395,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,618.07 : 729,499.94 = 286,903.54 : x
  2. Step 2: Convert to fraction form
    528,618.07/729,499.94 = 286,903.54/x
  3. Step 3: Cross multiply
    528,618.07x = 729,499.94 × 286,903.54
  4. Step 4: Simplify right side
    528,618.07x = 209,296,115,215.79
  5. Step 5: Solve for x
    x = 209,296,115,215.79/528,618.07
  6. Step 6: Final answer
    x = 395,930.69

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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.