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Finding the Fourth Proportional to 604,646.72, 906,970.08 and 220,424.39

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Solution

The fourth proportional to 604,646.72, 906,970.08 and 220,424.39 is: 330,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,646.72 : 906,970.08 = 220,424.39 : x
  2. Step 2: Convert to fraction form
    604,646.72/906,970.08 = 220,424.39/x
  3. Step 3: Cross multiply
    604,646.72x = 906,970.08 × 220,424.39
  4. Step 4: Simplify right side
    604,646.72x = 199,918,325,530.13
  5. Step 5: Solve for x
    x = 199,918,325,530.13/604,646.72
  6. Step 6: Final answer
    x = 330,636.58

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Similar ratio
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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.