Home / 810,637.10-1,118,683.65-443,114.79

Finding the Fourth Proportional to 810,637.10, 1,118,683.65 and 443,114.79

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Solution

The fourth proportional to 810,637.10, 1,118,683.65 and 443,114.79 is: 611,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,637.10 : 1,118,683.65 = 443,114.79 : x
  2. Step 2: Convert to fraction form
    810,637.10/1,118,683.65 = 443,114.79/x
  3. Step 3: Cross multiply
    810,637.10x = 1,118,683.65 × 443,114.79
  4. Step 4: Simplify right side
    810,637.10x = 495,705,270,646.18
  5. Step 5: Solve for x
    x = 495,705,270,646.18/810,637.10
  6. Step 6: Final answer
    x = 611,500.85

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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.