Home / 878,411.70-1,317,617.55-436,043.70

Finding the Fourth Proportional to 878,411.70, 1,317,617.55 and 436,043.70

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Solution

The fourth proportional to 878,411.70, 1,317,617.55 and 436,043.70 is: 654,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,411.70 : 1,317,617.55 = 436,043.70 : x
  2. Step 2: Convert to fraction form
    878,411.70/1,317,617.55 = 436,043.70/x
  3. Step 3: Cross multiply
    878,411.70x = 1,317,617.55 × 436,043.70
  4. Step 4: Simplify right side
    878,411.70x = 574,538,831,686.94
  5. Step 5: Solve for x
    x = 574,538,831,686.94/878,411.70
  6. Step 6: Final answer
    x = 654,065.55

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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.