Home / 822,390.46-1,134,555.04-640,787.10

Finding the Fourth Proportional to 822,390.46, 1,134,555.04 and 640,787.10

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Solution

The fourth proportional to 822,390.46, 1,134,555.04 and 640,787.10 is: 884,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,390.46 : 1,134,555.04 = 640,787.10 : x
  2. Step 2: Convert to fraction form
    822,390.46/1,134,555.04 = 640,787.10/x
  3. Step 3: Cross multiply
    822,390.46x = 1,134,555.04 × 640,787.10
  4. Step 4: Simplify right side
    822,390.46x = 727,008,233,871.98
  5. Step 5: Solve for x
    x = 727,008,233,871.98/822,390.46
  6. Step 6: Final answer
    x = 884,018.32

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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.