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Finding the Fourth Proportional to 1,308,404,746.60, 1,805,604,163.76 and 713,702,190.94

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Solution

The fourth proportional to 1,308,404,746.60, 1,805,604,163.76 and 713,702,190.94 is: 984,912,085.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,404,746.60 : 1,805,604,163.76 = 713,702,190.94 : x
  2. Step 2: Convert to fraction form
    1,308,404,746.60/1,805,604,163.76 = 713,702,190.94/x
  3. Step 3: Cross multiply
    1,308,404,746.60x = 1,805,604,163.76 × 713,702,190.94
  4. Step 4: Simplify right side
    1,308,404,746.60x = 1,288,663,647,643,168,768
  5. Step 5: Solve for x
    x = 1,288,663,647,643,168,768/1,308,404,746.60
  6. Step 6: Final answer
    x = 984,912,085.50

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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.