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Finding the Fourth Proportional to 702,743,888.69, 969,221,096.32 and 617,789,362.18

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Solution

The fourth proportional to 702,743,888.69, 969,221,096.32 and 617,789,362.18 is: 852,052,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,743,888.69 : 969,221,096.32 = 617,789,362.18 : x
  2. Step 2: Convert to fraction form
    702,743,888.69/969,221,096.32 = 617,789,362.18/x
  3. Step 3: Cross multiply
    702,743,888.69x = 969,221,096.32 × 617,789,362.18
  4. Step 4: Simplify right side
    702,743,888.69x = 598,774,482,906,933,120
  5. Step 5: Solve for x
    x = 598,774,482,906,933,120/702,743,888.69
  6. Step 6: Final answer
    x = 852,052,209.27

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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.