Home / 686,359.44-947,173.32-384,552.72

Finding the Fourth Proportional to 686,359.44, 947,173.32 and 384,552.72

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Solution

The fourth proportional to 686,359.44, 947,173.32 and 384,552.72 is: 530,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,359.44 : 947,173.32 = 384,552.72 : x
  2. Step 2: Convert to fraction form
    686,359.44/947,173.32 = 384,552.72/x
  3. Step 3: Cross multiply
    686,359.44x = 947,173.32 × 384,552.72
  4. Step 4: Simplify right side
    686,359.44x = 364,238,076,517.43
  5. Step 5: Solve for x
    x = 364,238,076,517.43/686,359.44
  6. Step 6: Final answer
    x = 530,681.24

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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.