Home / 515,610.10-711,531.23-286,154.06

Finding the Fourth Proportional to 515,610.10, 711,531.23 and 286,154.06

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Solution

The fourth proportional to 515,610.10, 711,531.23 and 286,154.06 is: 394,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,610.10 : 711,531.23 = 286,154.06 : x
  2. Step 2: Convert to fraction form
    515,610.10/711,531.23 = 286,154.06/x
  3. Step 3: Cross multiply
    515,610.10x = 711,531.23 × 286,154.06
  4. Step 4: Simplify right side
    515,610.10x = 203,607,550,281.29
  5. Step 5: Solve for x
    x = 203,607,550,281.29/515,610.10
  6. Step 6: Final answer
    x = 394,886.66

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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.