Home / 878,216.52-1,211,923.08-496,235.12

Finding the Fourth Proportional to 878,216.52, 1,211,923.08 and 496,235.12

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Solution

The fourth proportional to 878,216.52, 1,211,923.08 and 496,235.12 is: 684,795.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,216.52 : 1,211,923.08 = 496,235.12 : x
  2. Step 2: Convert to fraction form
    878,216.52/1,211,923.08 = 496,235.12/x
  3. Step 3: Cross multiply
    878,216.52x = 1,211,923.08 × 496,235.12
  4. Step 4: Simplify right side
    878,216.52x = 601,398,795,034.57
  5. Step 5: Solve for x
    x = 601,398,795,034.57/878,216.52
  6. Step 6: Final answer
    x = 684,795.58

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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.