Home / 686,168.03-946,941.99-380,243.72

Finding the Fourth Proportional to 686,168.03, 946,941.99 and 380,243.72

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Solution

The fourth proportional to 686,168.03, 946,941.99 and 380,243.72 is: 524,753.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,168.03 : 946,941.99 = 380,243.72 : x
  2. Step 2: Convert to fraction form
    686,168.03/946,941.99 = 380,243.72/x
  3. Step 3: Cross multiply
    686,168.03x = 946,941.99 × 380,243.72
  4. Step 4: Simplify right side
    686,168.03x = 360,068,744,901.80
  5. Step 5: Solve for x
    x = 360,068,744,901.80/686,168.03
  6. Step 6: Final answer
    x = 524,753.02

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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.