Home / 686,308.08-947,158.80-441,511.44

Finding the Fourth Proportional to 686,308.08, 947,158.80 and 441,511.44

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Solution

The fourth proportional to 686,308.08, 947,158.80 and 441,511.44 is: 609,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,308.08 : 947,158.80 = 441,511.44 : x
  2. Step 2: Convert to fraction form
    686,308.08/947,158.80 = 441,511.44/x
  3. Step 3: Cross multiply
    686,308.08x = 947,158.80 × 441,511.44
  4. Step 4: Simplify right side
    686,308.08x = 418,181,445,696.67
  5. Step 5: Solve for x
    x = 418,181,445,696.67/686,308.08
  6. Step 6: Final answer
    x = 609,320.30

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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.