Home / 1,657,503.76-2,287,378.56-978,440.08

Finding the Fourth Proportional to 1,657,503.76, 2,287,378.56 and 978,440.08

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Solution

The fourth proportional to 1,657,503.76, 2,287,378.56 and 978,440.08 is: 1,350,261.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,503.76 : 2,287,378.56 = 978,440.08 : x
  2. Step 2: Convert to fraction form
    1,657,503.76/2,287,378.56 = 978,440.08/x
  3. Step 3: Cross multiply
    1,657,503.76x = 2,287,378.56 × 978,440.08
  4. Step 4: Simplify right side
    1,657,503.76x = 2,238,062,861,236.68
  5. Step 5: Solve for x
    x = 2,238,062,861,236.68/1,657,503.76
  6. Step 6: Final answer
    x = 1,350,261.11

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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.