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Finding the Fourth Proportional to 1,260,873,687.60, 1,889,718,006.60 and 613,246,935.60

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Solution

The fourth proportional to 1,260,873,687.60, 1,889,718,006.60 and 613,246,935.60 is: 919,095,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,873,687.60 : 1,889,718,006.60 = 613,246,935.60 : x
  2. Step 2: Convert to fraction form
    1,260,873,687.60/1,889,718,006.60 = 613,246,935.60/x
  3. Step 3: Cross multiply
    1,260,873,687.60x = 1,889,718,006.60 × 613,246,935.60
  4. Step 4: Simplify right side
    1,260,873,687.60x = 1,158,863,776,695,590,656
  5. Step 5: Solve for x
    x = 1,158,863,776,695,590,656/1,260,873,687.60
  6. Step 6: Final answer
    x = 919,095,852.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.