Home / 515,440.50-711,618.93-336,903.54

Finding the Fourth Proportional to 515,440.50, 711,618.93 and 336,903.54

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Solution

The fourth proportional to 515,440.50, 711,618.93 and 336,903.54 is: 465,130.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,440.50 : 711,618.93 = 336,903.54 : x
  2. Step 2: Convert to fraction form
    515,440.50/711,618.93 = 336,903.54/x
  3. Step 3: Cross multiply
    515,440.50x = 711,618.93 × 336,903.54
  4. Step 4: Simplify right side
    515,440.50x = 239,746,936,648.01
  5. Step 5: Solve for x
    x = 239,746,936,648.01/515,440.50
  6. Step 6: Final answer
    x = 465,130.19

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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.