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Finding the Fourth Proportional to 1,337,655,999.60, 2,006,483,999.40 and 872,751,412.80

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Solution

The fourth proportional to 1,337,655,999.60, 2,006,483,999.40 and 872,751,412.80 is: 1,309,127,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337,655,999.60 : 2,006,483,999.40 = 872,751,412.80 : x
  2. Step 2: Convert to fraction form
    1,337,655,999.60/2,006,483,999.40 = 872,751,412.80/x
  3. Step 3: Cross multiply
    1,337,655,999.60x = 2,006,483,999.40 × 872,751,412.80
  4. Step 4: Simplify right side
    1,337,655,999.60x = 1,751,161,745,236,944,384
  5. Step 5: Solve for x
    x = 1,751,161,745,236,944,384/1,337,655,999.60
  6. Step 6: Final answer
    x = 1,309,127,119.20

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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.