Home / 539,320.15-808,209.19-396,041.28

Finding the Fourth Proportional to 539,320.15, 808,209.19 and 396,041.28

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Solution

The fourth proportional to 539,320.15, 808,209.19 and 396,041.28 is: 593,495.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,320.15 : 808,209.19 = 396,041.28 : x
  2. Step 2: Convert to fraction form
    539,320.15/808,209.19 = 396,041.28/x
  3. Step 3: Cross multiply
    539,320.15x = 808,209.19 × 396,041.28
  4. Step 4: Simplify right side
    539,320.15x = 320,084,202,115.36
  5. Step 5: Solve for x
    x = 320,084,202,115.36/539,320.15
  6. Step 6: Final answer
    x = 593,495.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.