Home / 785,378.76-1,083,510.84-454,173.52

Finding the Fourth Proportional to 785,378.76, 1,083,510.84 and 454,173.52

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Solution

The fourth proportional to 785,378.76, 1,083,510.84 and 454,173.52 is: 626,579.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,378.76 : 1,083,510.84 = 454,173.52 : x
  2. Step 2: Convert to fraction form
    785,378.76/1,083,510.84 = 454,173.52/x
  3. Step 3: Cross multiply
    785,378.76x = 1,083,510.84 × 454,173.52
  4. Step 4: Simplify right side
    785,378.76x = 492,101,932,160.96
  5. Step 5: Solve for x
    x = 492,101,932,160.96/785,378.76
  6. Step 6: Final answer
    x = 626,579.12

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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.