Home / 685,966.12-946,462.26-395,666.44

Finding the Fourth Proportional to 685,966.12, 946,462.26 and 395,666.44

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Solution

The fourth proportional to 685,966.12, 946,462.26 and 395,666.44 is: 545,921.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,966.12 : 946,462.26 = 395,666.44 : x
  2. Step 2: Convert to fraction form
    685,966.12/946,462.26 = 395,666.44/x
  3. Step 3: Cross multiply
    685,966.12x = 946,462.26 × 395,666.44
  4. Step 4: Simplify right side
    685,966.12x = 374,483,353,008.55
  5. Step 5: Solve for x
    x = 374,483,353,008.55/685,966.12
  6. Step 6: Final answer
    x = 545,921.06

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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.