Home / 1,539,903.50-2,309,688.86-515,117.63

Finding the Fourth Proportional to 1,539,903.50, 2,309,688.86 and 515,117.63

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Solution

The fourth proportional to 1,539,903.50, 2,309,688.86 and 515,117.63 is: 772,620.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,903.50 : 2,309,688.86 = 515,117.63 : x
  2. Step 2: Convert to fraction form
    1,539,903.50/2,309,688.86 = 515,117.63/x
  3. Step 3: Cross multiply
    1,539,903.50x = 2,309,688.86 × 515,117.63
  4. Step 4: Simplify right side
    1,539,903.50x = 1,189,761,437,476.57
  5. Step 5: Solve for x
    x = 1,189,761,437,476.57/1,539,903.50
  6. Step 6: Final answer
    x = 772,620.78

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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.