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Finding the Fourth Proportional to 988,733,337.06, 1,482,265,901.61 and 813,865,001.07

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Solution

The fourth proportional to 988,733,337.06, 1,482,265,901.61 and 813,865,001.07 is: 1,220,110,918.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,733,337.06 : 1,482,265,901.61 = 813,865,001.07 : x
  2. Step 2: Convert to fraction form
    988,733,337.06/1,482,265,901.61 = 813,865,001.07/x
  3. Step 3: Cross multiply
    988,733,337.06x = 1,482,265,901.61 × 813,865,001.07
  4. Step 4: Simplify right side
    988,733,337.06x = 1,206,364,339,599,847,168
  5. Step 5: Solve for x
    x = 1,206,364,339,599,847,168/988,733,337.06
  6. Step 6: Final answer
    x = 1,220,110,918.06

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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.