Home / 578,413.20-867,619.80-410,123.55

Finding the Fourth Proportional to 578,413.20, 867,619.80 and 410,123.55

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Solution

The fourth proportional to 578,413.20, 867,619.80 and 410,123.55 is: 615,185.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,413.20 : 867,619.80 = 410,123.55 : x
  2. Step 2: Convert to fraction form
    578,413.20/867,619.80 = 410,123.55/x
  3. Step 3: Cross multiply
    578,413.20x = 867,619.80 × 410,123.55
  4. Step 4: Simplify right side
    578,413.20x = 355,831,312,426.29
  5. Step 5: Solve for x
    x = 355,831,312,426.29/578,413.20
  6. Step 6: Final answer
    x = 615,185.33

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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.