Home / 863,278.81-1,191,280.92-476,161.60

Finding the Fourth Proportional to 863,278.81, 1,191,280.92 and 476,161.60

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Solution

The fourth proportional to 863,278.81, 1,191,280.92 and 476,161.60 is: 657,078.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,278.81 : 1,191,280.92 = 476,161.60 : x
  2. Step 2: Convert to fraction form
    863,278.81/1,191,280.92 = 476,161.60/x
  3. Step 3: Cross multiply
    863,278.81x = 1,191,280.92 × 476,161.60
  4. Step 4: Simplify right side
    863,278.81x = 567,242,228,916.67
  5. Step 5: Solve for x
    x = 567,242,228,916.67/863,278.81
  6. Step 6: Final answer
    x = 657,078.83

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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.