Home / 731,181,221.35-1,009,030,085.44-417,922,161.38

Finding the Fourth Proportional to 731,181,221.35, 1,009,030,085.44 and 417,922,161.38

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Solution

The fourth proportional to 731,181,221.35, 1,009,030,085.44 and 417,922,161.38 is: 576,732,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,181,221.35 : 1,009,030,085.44 = 417,922,161.38 : x
  2. Step 2: Convert to fraction form
    731,181,221.35/1,009,030,085.44 = 417,922,161.38/x
  3. Step 3: Cross multiply
    731,181,221.35x = 1,009,030,085.44 × 417,922,161.38
  4. Step 4: Simplify right side
    731,181,221.35x = 421,696,034,204,530,880
  5. Step 5: Solve for x
    x = 421,696,034,204,530,880/731,181,221.35
  6. Step 6: Final answer
    x = 576,732,582.69

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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.