Home / 1,129,011.20-1,558,053.12-619,760

Finding the Fourth Proportional to 1,129,011.20, 1,558,053.12 and 619,760

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Solution

The fourth proportional to 1,129,011.20, 1,558,053.12 and 619,760 is: 855,278.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,011.20 : 1,558,053.12 = 619,760 : x
  2. Step 2: Convert to fraction form
    1,129,011.20/1,558,053.12 = 619,760/x
  3. Step 3: Cross multiply
    1,129,011.20x = 1,558,053.12 × 619,760
  4. Step 4: Simplify right side
    1,129,011.20x = 965,619,001,651.20
  5. Step 5: Solve for x
    x = 965,619,001,651.20/1,129,011.20
  6. Step 6: Final answer
    x = 855,278.50

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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.