Home / 591,999.13-816,413.65-387,975.72

Finding the Fourth Proportional to 591,999.13, 816,413.65 and 387,975.72

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Solution

The fourth proportional to 591,999.13, 816,413.65 and 387,975.72 is: 535,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,999.13 : 816,413.65 = 387,975.72 : x
  2. Step 2: Convert to fraction form
    591,999.13/816,413.65 = 387,975.72/x
  3. Step 3: Cross multiply
    591,999.13x = 816,413.65 × 387,975.72
  4. Step 4: Simplify right side
    591,999.13x = 316,748,673,676.58
  5. Step 5: Solve for x
    x = 316,748,673,676.58/591,999.13
  6. Step 6: Final answer
    x = 535,049.22

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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.