Home / 662,942.10-994,413.15-410,999.70

Finding the Fourth Proportional to 662,942.10, 994,413.15 and 410,999.70

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Solution

The fourth proportional to 662,942.10, 994,413.15 and 410,999.70 is: 616,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,942.10 : 994,413.15 = 410,999.70 : x
  2. Step 2: Convert to fraction form
    662,942.10/994,413.15 = 410,999.70/x
  3. Step 3: Cross multiply
    662,942.10x = 994,413.15 × 410,999.70
  4. Step 4: Simplify right side
    662,942.10x = 408,703,506,326.06
  5. Step 5: Solve for x
    x = 408,703,506,326.06/662,942.10
  6. Step 6: Final answer
    x = 616,499.55

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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.