Home / 781,415.42-1,170,606.45-575,876.75

Finding the Fourth Proportional to 781,415.42, 1,170,606.45 and 575,876.75

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Solution

The fourth proportional to 781,415.42, 1,170,606.45 and 575,876.75 is: 862,697.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,415.42 : 1,170,606.45 = 575,876.75 : x
  2. Step 2: Convert to fraction form
    781,415.42/1,170,606.45 = 575,876.75/x
  3. Step 3: Cross multiply
    781,415.42x = 1,170,606.45 × 575,876.75
  4. Step 4: Simplify right side
    781,415.42x = 674,125,037,955.04
  5. Step 5: Solve for x
    x = 674,125,037,955.04/781,415.42
  6. Step 6: Final answer
    x = 862,697.38

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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.