Home / 656,400,375.59-905,835,228.79-354,985,680.60

Finding the Fourth Proportional to 656,400,375.59, 905,835,228.79 and 354,985,680.60

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Solution

The fourth proportional to 656,400,375.59, 905,835,228.79 and 354,985,680.60 is: 489,881,705.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,400,375.59 : 905,835,228.79 = 354,985,680.60 : x
  2. Step 2: Convert to fraction form
    656,400,375.59/905,835,228.79 = 354,985,680.60/x
  3. Step 3: Cross multiply
    656,400,375.59x = 905,835,228.79 × 354,985,680.60
  4. Step 4: Simplify right side
    656,400,375.59x = 321,558,535,202,587,456
  5. Step 5: Solve for x
    x = 321,558,535,202,587,456/656,400,375.59
  6. Step 6: Final answer
    x = 489,881,705.07

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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.