Home / 515,637.46-711,574.30-286,196.73

Finding the Fourth Proportional to 515,637.46, 711,574.30 and 286,196.73

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Solution

The fourth proportional to 515,637.46, 711,574.30 and 286,196.73 is: 394,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,637.46 : 711,574.30 = 286,196.73 : x
  2. Step 2: Convert to fraction form
    515,637.46/711,574.30 = 286,196.73/x
  3. Step 3: Cross multiply
    515,637.46x = 711,574.30 × 286,196.73
  4. Step 4: Simplify right side
    515,637.46x = 203,650,237,812.04
  5. Step 5: Solve for x
    x = 203,650,237,812.04/515,637.46
  6. Step 6: Final answer
    x = 394,948.49

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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.