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Finding the Fourth Proportional to 6,903,663.30, 10,355,489.48 and 1,854,973.80

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Solution

The fourth proportional to 6,903,663.30, 10,355,489.48 and 1,854,973.80 is: 2,782,459.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,903,663.30 : 10,355,489.48 = 1,854,973.80 : x
  2. Step 2: Convert to fraction form
    6,903,663.30/10,355,489.48 = 1,854,973.80/x
  3. Step 3: Cross multiply
    6,903,663.30x = 10,355,489.48 × 1,854,973.80
  4. Step 4: Simplify right side
    6,903,663.30x = 19,209,161,671,575.62
  5. Step 5: Solve for x
    x = 19,209,161,671,575.62/6,903,663.30
  6. Step 6: Final answer
    x = 2,782,459.23

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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.