Home / 511,103.28-766,166.80-191,168.40

Finding the Fourth Proportional to 511,103.28, 766,166.80 and 191,168.40

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Solution

The fourth proportional to 511,103.28, 766,166.80 and 191,168.40 is: 286,570.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,103.28 : 766,166.80 = 191,168.40 : x
  2. Step 2: Convert to fraction form
    511,103.28/766,166.80 = 191,168.40/x
  3. Step 3: Cross multiply
    511,103.28x = 766,166.80 × 191,168.40
  4. Step 4: Simplify right side
    511,103.28x = 146,466,881,289.12
  5. Step 5: Solve for x
    x = 146,466,881,289.12/511,103.28
  6. Step 6: Final answer
    x = 286,570.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.