Home / 778,856.70-1,168,285.05-405,608.70

Finding the Fourth Proportional to 778,856.70, 1,168,285.05 and 405,608.70

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Solution

The fourth proportional to 778,856.70, 1,168,285.05 and 405,608.70 is: 608,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,856.70 : 1,168,285.05 = 405,608.70 : x
  2. Step 2: Convert to fraction form
    778,856.70/1,168,285.05 = 405,608.70/x
  3. Step 3: Cross multiply
    778,856.70x = 1,168,285.05 × 405,608.70
  4. Step 4: Simplify right side
    778,856.70x = 473,866,580,359.94
  5. Step 5: Solve for x
    x = 473,866,580,359.94/778,856.70
  6. Step 6: Final answer
    x = 608,413.05

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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.