Home / 2,019,875.15-2,788,437.80-1,256,174.75

Finding the Fourth Proportional to 2,019,875.15, 2,788,437.80 and 1,256,174.75

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Solution

The fourth proportional to 2,019,875.15, 2,788,437.80 and 1,256,174.75 is: 1,734,149.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,875.15 : 2,788,437.80 = 1,256,174.75 : x
  2. Step 2: Convert to fraction form
    2,019,875.15/2,788,437.80 = 1,256,174.75/x
  3. Step 3: Cross multiply
    2,019,875.15x = 2,788,437.80 × 1,256,174.75
  4. Step 4: Simplify right side
    2,019,875.15x = 3,502,765,156,305.55
  5. Step 5: Solve for x
    x = 3,502,765,156,305.55/2,019,875.15
  6. Step 6: Final answer
    x = 1,734,149.34

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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.