Home / 878,153.76-1,211,759.46-496,106.76

Finding the Fourth Proportional to 878,153.76, 1,211,759.46 and 496,106.76

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Solution

The fourth proportional to 878,153.76, 1,211,759.46 and 496,106.76 is: 684,574.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,153.76 : 1,211,759.46 = 496,106.76 : x
  2. Step 2: Convert to fraction form
    878,153.76/1,211,759.46 = 496,106.76/x
  3. Step 3: Cross multiply
    878,153.76x = 1,211,759.46 × 496,106.76
  4. Step 4: Simplify right side
    878,153.76x = 601,162,059,599.95
  5. Step 5: Solve for x
    x = 601,162,059,599.95/878,153.76
  6. Step 6: Final answer
    x = 684,574.94

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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.