Home / 1,189,534.40-1,784,128.80-347,998.40

Finding the Fourth Proportional to 1,189,534.40, 1,784,128.80 and 347,998.40

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Solution

The fourth proportional to 1,189,534.40, 1,784,128.80 and 347,998.40 is: 521,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,534.40 : 1,784,128.80 = 347,998.40 : x
  2. Step 2: Convert to fraction form
    1,189,534.40/1,784,128.80 = 347,998.40/x
  3. Step 3: Cross multiply
    1,189,534.40x = 1,784,128.80 × 347,998.40
  4. Step 4: Simplify right side
    1,189,534.40x = 620,873,967,793.92
  5. Step 5: Solve for x
    x = 620,873,967,793.92/1,189,534.40
  6. Step 6: Final answer
    x = 521,947.05

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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.