Home / 911,320.01-1,257,632.17-503,413.40

Finding the Fourth Proportional to 911,320.01, 1,257,632.17 and 503,413.40

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Solution

The fourth proportional to 911,320.01, 1,257,632.17 and 503,413.40 is: 694,716.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,320.01 : 1,257,632.17 = 503,413.40 : x
  2. Step 2: Convert to fraction form
    911,320.01/1,257,632.17 = 503,413.40/x
  3. Step 3: Cross multiply
    911,320.01x = 1,257,632.17 × 503,413.40
  4. Step 4: Simplify right side
    911,320.01x = 633,108,886,649.08
  5. Step 5: Solve for x
    x = 633,108,886,649.08/911,320.01
  6. Step 6: Final answer
    x = 694,716.32

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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.