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Finding the Fourth Proportional to 1,262,054,978.25, 1,741,725,994.35 and 697,527,728.29

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Solution

The fourth proportional to 1,262,054,978.25, 1,741,725,994.35 and 697,527,728.29 is: 962,638,076.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,054,978.25 : 1,741,725,994.35 = 697,527,728.29 : x
  2. Step 2: Convert to fraction form
    1,262,054,978.25/1,741,725,994.35 = 697,527,728.29/x
  3. Step 3: Cross multiply
    1,262,054,978.25x = 1,741,725,994.35 × 697,527,728.29
  4. Step 4: Simplify right side
    1,262,054,978.25x = 1,214,902,176,142,596,864
  5. Step 5: Solve for x
    x = 1,214,902,176,142,596,864/1,262,054,978.25
  6. Step 6: Final answer
    x = 962,638,076.06

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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.