Home / 528,634.14-729,515.47-286,916.72

Finding the Fourth Proportional to 528,634.14, 729,515.47 and 286,916.72

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Solution

The fourth proportional to 528,634.14, 729,515.47 and 286,916.72 is: 395,945.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,634.14 : 729,515.47 = 286,916.72 : x
  2. Step 2: Convert to fraction form
    528,634.14/729,515.47 = 286,916.72/x
  3. Step 3: Cross multiply
    528,634.14x = 729,515.47 × 286,916.72
  4. Step 4: Simplify right side
    528,634.14x = 209,310,182,194.08
  5. Step 5: Solve for x
    x = 209,310,182,194.08/528,634.14
  6. Step 6: Final answer
    x = 395,945.26

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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.