Home / 2,019,870.15-2,788,430.90-1,256,169.75

Finding the Fourth Proportional to 2,019,870.15, 2,788,430.90 and 1,256,169.75

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Solution

The fourth proportional to 2,019,870.15, 2,788,430.90 and 1,256,169.75 is: 1,734,142.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,870.15 : 2,788,430.90 = 1,256,169.75 : x
  2. Step 2: Convert to fraction form
    2,019,870.15/2,788,430.90 = 1,256,169.75/x
  3. Step 3: Cross multiply
    2,019,870.15x = 2,788,430.90 × 1,256,169.75
  4. Step 4: Simplify right side
    2,019,870.15x = 3,502,742,546,545.28
  5. Step 5: Solve for x
    x = 3,502,742,546,545.28/2,019,870.15
  6. Step 6: Final answer
    x = 1,734,142.44

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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.