Home / 528,844.23-729,802.17-287,124.84

Finding the Fourth Proportional to 528,844.23, 729,802.17 and 287,124.84

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Solution

The fourth proportional to 528,844.23, 729,802.17 and 287,124.84 is: 396,230.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,844.23 : 729,802.17 = 287,124.84 : x
  2. Step 2: Convert to fraction form
    528,844.23/729,802.17 = 287,124.84/x
  3. Step 3: Cross multiply
    528,844.23x = 729,802.17 × 287,124.84
  4. Step 4: Simplify right side
    528,844.23x = 209,544,331,292.90
  5. Step 5: Solve for x
    x = 209,544,331,292.90/528,844.23
  6. Step 6: Final answer
    x = 396,230.72

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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.