Home / 711,971.10-982,512.61-385,276.95

Finding the Fourth Proportional to 711,971.10, 982,512.61 and 385,276.95

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Solution

The fourth proportional to 711,971.10, 982,512.61 and 385,276.95 is: 531,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,971.10 : 982,512.61 = 385,276.95 : x
  2. Step 2: Convert to fraction form
    711,971.10/982,512.61 = 385,276.95/x
  3. Step 3: Cross multiply
    711,971.10x = 982,512.61 × 385,276.95
  4. Step 4: Simplify right side
    711,971.10x = 378,539,460,754.15
  5. Step 5: Solve for x
    x = 378,539,460,754.15/711,971.10
  6. Step 6: Final answer
    x = 531,678.13

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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.