Home / 878,261.60-1,211,985.23-496,280.18

Finding the Fourth Proportional to 878,261.60, 1,211,985.23 and 496,280.18

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Solution

The fourth proportional to 878,261.60, 1,211,985.23 and 496,280.18 is: 684,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,261.60 : 1,211,985.23 = 496,280.18 : x
  2. Step 2: Convert to fraction form
    878,261.60/1,211,985.23 = 496,280.18/x
  3. Step 3: Cross multiply
    878,261.60x = 1,211,985.23 × 496,280.18
  4. Step 4: Simplify right side
    878,261.60x = 601,484,239,560.41
  5. Step 5: Solve for x
    x = 601,484,239,560.41/878,261.60
  6. Step 6: Final answer
    x = 684,857.73

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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.