Home / 831,411.68-1,147,340.80-449,435.04

Finding the Fourth Proportional to 831,411.68, 1,147,340.80 and 449,435.04

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Solution

The fourth proportional to 831,411.68, 1,147,340.80 and 449,435.04 is: 620,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,411.68 : 1,147,340.80 = 449,435.04 : x
  2. Step 2: Convert to fraction form
    831,411.68/1,147,340.80 = 449,435.04/x
  3. Step 3: Cross multiply
    831,411.68x = 1,147,340.80 × 449,435.04
  4. Step 4: Simplify right side
    831,411.68x = 515,655,158,341.63
  5. Step 5: Solve for x
    x = 515,655,158,341.63/831,411.68
  6. Step 6: Final answer
    x = 620,216.40

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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.