Home / 891,005.40-1,336,508.10-536,419.80

Finding the Fourth Proportional to 891,005.40, 1,336,508.10 and 536,419.80

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Solution

The fourth proportional to 891,005.40, 1,336,508.10 and 536,419.80 is: 804,629.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,005.40 : 1,336,508.10 = 536,419.80 : x
  2. Step 2: Convert to fraction form
    891,005.40/1,336,508.10 = 536,419.80/x
  3. Step 3: Cross multiply
    891,005.40x = 1,336,508.10 × 536,419.80
  4. Step 4: Simplify right side
    891,005.40x = 716,929,407,700.38
  5. Step 5: Solve for x
    x = 716,929,407,700.38/891,005.40
  6. Step 6: Final answer
    x = 804,629.70

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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.