Home / 3,119,678.80-4,679,518.20-1,917,703.60

Finding the Fourth Proportional to 3,119,678.80, 4,679,518.20 and 1,917,703.60

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Solution

The fourth proportional to 3,119,678.80, 4,679,518.20 and 1,917,703.60 is: 2,876,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,678.80 : 4,679,518.20 = 1,917,703.60 : x
  2. Step 2: Convert to fraction form
    3,119,678.80/4,679,518.20 = 1,917,703.60/x
  3. Step 3: Cross multiply
    3,119,678.80x = 4,679,518.20 × 1,917,703.60
  4. Step 4: Simplify right side
    3,119,678.80x = 8,973,928,898,405.52
  5. Step 5: Solve for x
    x = 8,973,928,898,405.52/3,119,678.80
  6. Step 6: Final answer
    x = 2,876,555.40

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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.