Home / 1,298,324,398.38-1,791,730,999.71-711,615,037.74

Finding the Fourth Proportional to 1,298,324,398.38, 1,791,730,999.71 and 711,615,037.74

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Solution

The fourth proportional to 1,298,324,398.38, 1,791,730,999.71 and 711,615,037.74 is: 982,052,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,324,398.38 : 1,791,730,999.71 = 711,615,037.74 : x
  2. Step 2: Convert to fraction form
    1,298,324,398.38/1,791,730,999.71 = 711,615,037.74/x
  3. Step 3: Cross multiply
    1,298,324,398.38x = 1,791,730,999.71 × 711,615,037.74
  4. Step 4: Simplify right side
    1,298,324,398.38x = 1,275,022,722,978,559,744
  5. Step 5: Solve for x
    x = 1,275,022,722,978,559,744/1,298,324,398.38
  6. Step 6: Final answer
    x = 982,052,501.34

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Double scale
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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.