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Finding the Fourth Proportional to 713,322,365.02, 980,894,142.05 and 619,072,884.57

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Solution

The fourth proportional to 713,322,365.02, 980,894,142.05 and 619,072,884.57 is: 851,291,079.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,322,365.02 : 980,894,142.05 = 619,072,884.57 : x
  2. Step 2: Convert to fraction form
    713,322,365.02/980,894,142.05 = 619,072,884.57/x
  3. Step 3: Cross multiply
    713,322,365.02x = 980,894,142.05 × 619,072,884.57
  4. Step 4: Simplify right side
    713,322,365.02x = 607,244,965,970,768,640
  5. Step 5: Solve for x
    x = 607,244,965,970,768,640/713,322,365.02
  6. Step 6: Final answer
    x = 851,291,079.25

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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.