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Finding the Fourth Proportional to 569,621.80, 854,367.90 and 148,940.20

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Solution

The fourth proportional to 569,621.80, 854,367.90 and 148,940.20 is: 223,393.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,621.80 : 854,367.90 = 148,940.20 : x
  2. Step 2: Convert to fraction form
    569,621.80/854,367.90 = 148,940.20/x
  3. Step 3: Cross multiply
    569,621.80x = 854,367.90 × 148,940.20
  4. Step 4: Simplify right side
    569,621.80x = 127,249,725,899.58
  5. Step 5: Solve for x
    x = 127,249,725,899.58/569,621.80
  6. Step 6: Final answer
    x = 223,393.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.