Home / 903,787.68-1,247,184.90-495,880.32

Finding the Fourth Proportional to 903,787.68, 1,247,184.90 and 495,880.32

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Solution

The fourth proportional to 903,787.68, 1,247,184.90 and 495,880.32 is: 684,291.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,787.68 : 1,247,184.90 = 495,880.32 : x
  2. Step 2: Convert to fraction form
    903,787.68/1,247,184.90 = 495,880.32/x
  3. Step 3: Cross multiply
    903,787.68x = 1,247,184.90 × 495,880.32
  4. Step 4: Simplify right side
    903,787.68x = 618,454,447,311.17
  5. Step 5: Solve for x
    x = 618,454,447,311.17/903,787.68
  6. Step 6: Final answer
    x = 684,291.74

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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.