Home / 810,699.68-1,118,765.81-443,178.42

Finding the Fourth Proportional to 810,699.68, 1,118,765.81 and 443,178.42

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Solution

The fourth proportional to 810,699.68, 1,118,765.81 and 443,178.42 is: 611,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,699.68 : 1,118,765.81 = 443,178.42 : x
  2. Step 2: Convert to fraction form
    810,699.68/1,118,765.81 = 443,178.42/x
  3. Step 3: Cross multiply
    810,699.68x = 1,118,765.81 × 443,178.42
  4. Step 4: Simplify right side
    810,699.68x = 495,812,861,809.93
  5. Step 5: Solve for x
    x = 495,812,861,809.93/810,699.68
  6. Step 6: Final answer
    x = 611,586.35

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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.