Home / 2,011,539.20-3,017,308.80-1,212,409.40

Finding the Fourth Proportional to 2,011,539.20, 3,017,308.80 and 1,212,409.40

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Solution

The fourth proportional to 2,011,539.20, 3,017,308.80 and 1,212,409.40 is: 1,818,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011,539.20 : 3,017,308.80 = 1,212,409.40 : x
  2. Step 2: Convert to fraction form
    2,011,539.20/3,017,308.80 = 1,212,409.40/x
  3. Step 3: Cross multiply
    2,011,539.20x = 3,017,308.80 × 1,212,409.40
  4. Step 4: Simplify right side
    2,011,539.20x = 3,658,213,551,822.72
  5. Step 5: Solve for x
    x = 3,658,213,551,822.72/2,011,539.20
  6. Step 6: Final answer
    x = 1,818,614.10

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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.