Home / 634,913.83-876,220.46-419,680.63

Finding the Fourth Proportional to 634,913.83, 876,220.46 and 419,680.63

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Solution

The fourth proportional to 634,913.83, 876,220.46 and 419,680.63 is: 579,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,913.83 : 876,220.46 = 419,680.63 : x
  2. Step 2: Convert to fraction form
    634,913.83/876,220.46 = 419,680.63/x
  3. Step 3: Cross multiply
    634,913.83x = 876,220.46 × 419,680.63
  4. Step 4: Simplify right side
    634,913.83x = 367,732,754,671.69
  5. Step 5: Solve for x
    x = 367,732,754,671.69/634,913.83
  6. Step 6: Final answer
    x = 579,185.30

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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.