Home / 819,124.40-1,130,254.62-456,468.78

Finding the Fourth Proportional to 819,124.40, 1,130,254.62 and 456,468.78

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Solution

The fourth proportional to 819,124.40, 1,130,254.62 and 456,468.78 is: 629,850.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,124.40 : 1,130,254.62 = 456,468.78 : x
  2. Step 2: Convert to fraction form
    819,124.40/1,130,254.62 = 456,468.78/x
  3. Step 3: Cross multiply
    819,124.40x = 1,130,254.62 × 456,468.78
  4. Step 4: Simplify right side
    819,124.40x = 515,925,947,480.76
  5. Step 5: Solve for x
    x = 515,925,947,480.76/819,124.40
  6. Step 6: Final answer
    x = 629,850.54

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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.