Home / 1,111,217.90-1,665,514.65-471,520.40

Finding the Fourth Proportional to 1,111,217.90, 1,665,514.65 and 471,520.40

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Solution

The fourth proportional to 1,111,217.90, 1,665,514.65 and 471,520.40 is: 706,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,217.90 : 1,665,514.65 = 471,520.40 : x
  2. Step 2: Convert to fraction form
    1,111,217.90/1,665,514.65 = 471,520.40/x
  3. Step 3: Cross multiply
    1,111,217.90x = 1,665,514.65 × 471,520.40
  4. Step 4: Simplify right side
    1,111,217.90x = 785,324,133,973.86
  5. Step 5: Solve for x
    x = 785,324,133,973.86/1,111,217.90
  6. Step 6: Final answer
    x = 706,723.80

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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.