Home / 814,413.59-1,123,987.69-470,333.18

Finding the Fourth Proportional to 814,413.59, 1,123,987.69 and 470,333.18

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Solution

The fourth proportional to 814,413.59, 1,123,987.69 and 470,333.18 is: 649,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,413.59 : 1,123,987.69 = 470,333.18 : x
  2. Step 2: Convert to fraction form
    814,413.59/1,123,987.69 = 470,333.18/x
  3. Step 3: Cross multiply
    814,413.59x = 1,123,987.69 × 470,333.18
  4. Step 4: Simplify right side
    814,413.59x = 528,648,707,916.44
  5. Step 5: Solve for x
    x = 528,648,707,916.44/814,413.59
  6. Step 6: Final answer
    x = 649,115.78

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Double scale
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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.