Home / 786,090.30-1,179,135.45-545,552.70

Finding the Fourth Proportional to 786,090.30, 1,179,135.45 and 545,552.70

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Solution

The fourth proportional to 786,090.30, 1,179,135.45 and 545,552.70 is: 818,329.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,090.30 : 1,179,135.45 = 545,552.70 : x
  2. Step 2: Convert to fraction form
    786,090.30/1,179,135.45 = 545,552.70/x
  3. Step 3: Cross multiply
    786,090.30x = 1,179,135.45 × 545,552.70
  4. Step 4: Simplify right side
    786,090.30x = 643,280,528,413.22
  5. Step 5: Solve for x
    x = 643,280,528,413.22/786,090.30
  6. Step 6: Final answer
    x = 818,329.05

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Double scale
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Similar ratio
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1.5x scale

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.