Home / 646,263.36-890,917.38-454,682.16

Finding the Fourth Proportional to 646,263.36, 890,917.38 and 454,682.16

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Solution

The fourth proportional to 646,263.36, 890,917.38 and 454,682.16 is: 626,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,263.36 : 890,917.38 = 454,682.16 : x
  2. Step 2: Convert to fraction form
    646,263.36/890,917.38 = 454,682.16/x
  3. Step 3: Cross multiply
    646,263.36x = 890,917.38 × 454,682.16
  4. Step 4: Simplify right side
    646,263.36x = 405,084,238,719.94
  5. Step 5: Solve for x
    x = 405,084,238,719.94/646,263.36
  6. Step 6: Final answer
    x = 626,809.85

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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.