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Finding the Fourth Proportional to 604,582.96, 906,991.08 and 338,643.76

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Solution

The fourth proportional to 604,582.96, 906,991.08 and 338,643.76 is: 508,030.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,582.96 : 906,991.08 = 338,643.76 : x
  2. Step 2: Convert to fraction form
    604,582.96/906,991.08 = 338,643.76/x
  3. Step 3: Cross multiply
    604,582.96x = 906,991.08 × 338,643.76
  4. Step 4: Simplify right side
    604,582.96x = 307,146,869,617.66
  5. Step 5: Solve for x
    x = 307,146,869,617.66/604,582.96
  6. Step 6: Final answer
    x = 508,030.97

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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.