Home / 927,996,221.21-1,280,641,447.28-504,606,848.52

Finding the Fourth Proportional to 927,996,221.21, 1,280,641,447.28 and 504,606,848.52

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Solution

The fourth proportional to 927,996,221.21, 1,280,641,447.28 and 504,606,848.52 is: 696,361,073.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,996,221.21 : 1,280,641,447.28 = 504,606,848.52 : x
  2. Step 2: Convert to fraction form
    927,996,221.21/1,280,641,447.28 = 504,606,848.52/x
  3. Step 3: Cross multiply
    927,996,221.21x = 1,280,641,447.28 × 504,606,848.52
  4. Step 4: Simplify right side
    927,996,221.21x = 646,220,444,796,052,480
  5. Step 5: Solve for x
    x = 646,220,444,796,052,480/927,996,221.21
  6. Step 6: Final answer
    x = 696,361,073.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.