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Finding the Fourth Proportional to 1,703,929.60, 2,553,723.60 and 905,593.60

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Solution

The fourth proportional to 1,703,929.60, 2,553,723.60 and 905,593.60 is: 1,357,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703,929.60 : 2,553,723.60 = 905,593.60 : x
  2. Step 2: Convert to fraction form
    1,703,929.60/2,553,723.60 = 905,593.60/x
  3. Step 3: Cross multiply
    1,703,929.60x = 2,553,723.60 × 905,593.60
  4. Step 4: Simplify right side
    1,703,929.60x = 2,312,635,748,328.96
  5. Step 5: Solve for x
    x = 2,312,635,748,328.96/1,703,929.60
  6. Step 6: Final answer
    x = 1,357,236.68

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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.