Home / 818,152.28-1,129,083.39-455,553.15

Finding the Fourth Proportional to 818,152.28, 1,129,083.39 and 455,553.15

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Solution

The fourth proportional to 818,152.28, 1,129,083.39 and 455,553.15 is: 628,681.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,152.28 : 1,129,083.39 = 455,553.15 : x
  2. Step 2: Convert to fraction form
    818,152.28/1,129,083.39 = 455,553.15/x
  3. Step 3: Cross multiply
    818,152.28x = 1,129,083.39 × 455,553.15
  4. Step 4: Simplify right side
    818,152.28x = 514,357,494,927.18
  5. Step 5: Solve for x
    x = 514,357,494,927.18/818,152.28
  6. Step 6: Final answer
    x = 628,681.86

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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.