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Finding the Fourth Proportional to 604,193.58, 906,290.28 and 287,690.94

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Solution

The fourth proportional to 604,193.58, 906,290.28 and 287,690.94 is: 431,536.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,193.58 : 906,290.28 = 287,690.94 : x
  2. Step 2: Convert to fraction form
    604,193.58/906,290.28 = 287,690.94/x
  3. Step 3: Cross multiply
    604,193.58x = 906,290.28 × 287,690.94
  4. Step 4: Simplify right side
    604,193.58x = 260,731,502,566.06
  5. Step 5: Solve for x
    x = 260,731,502,566.06/604,193.58
  6. Step 6: Final answer
    x = 431,536.37

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Double scale
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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.