Home / 686,185.88-946,938.74-380,267.30

Finding the Fourth Proportional to 686,185.88, 946,938.74 and 380,267.30

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Solution

The fourth proportional to 686,185.88, 946,938.74 and 380,267.30 is: 524,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,185.88 : 946,938.74 = 380,267.30 : x
  2. Step 2: Convert to fraction form
    686,185.88/946,938.74 = 380,267.30/x
  3. Step 3: Cross multiply
    686,185.88x = 946,938.74 × 380,267.30
  4. Step 4: Simplify right side
    686,185.88x = 360,089,837,925.20
  5. Step 5: Solve for x
    x = 360,089,837,925.20/686,185.88
  6. Step 6: Final answer
    x = 524,770.11

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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.