Home / 631,175.57-870,758.04-385,974.59

Finding the Fourth Proportional to 631,175.57, 870,758.04 and 385,974.59

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Solution

The fourth proportional to 631,175.57, 870,758.04 and 385,974.59 is: 532,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,175.57 : 870,758.04 = 385,974.59 : x
  2. Step 2: Convert to fraction form
    631,175.57/870,758.04 = 385,974.59/x
  3. Step 3: Cross multiply
    631,175.57x = 870,758.04 × 385,974.59
  4. Step 4: Simplify right side
    631,175.57x = 336,090,479,204.96
  5. Step 5: Solve for x
    x = 336,090,479,204.96/631,175.57
  6. Step 6: Final answer
    x = 532,483.35

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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.