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Finding the Fourth Proportional to 662,813,706.96, 915,074,805.96 and 589,271,284.08

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Solution

The fourth proportional to 662,813,706.96, 915,074,805.96 and 589,271,284.08 is: 813,542,780.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,813,706.96 : 915,074,805.96 = 589,271,284.08 : x
  2. Step 2: Convert to fraction form
    662,813,706.96/915,074,805.96 = 589,271,284.08/x
  3. Step 3: Cross multiply
    662,813,706.96x = 915,074,805.96 × 589,271,284.08
  4. Step 4: Simplify right side
    662,813,706.96x = 539,227,305,937,306,112
  5. Step 5: Solve for x
    x = 539,227,305,937,306,112/662,813,706.96
  6. Step 6: Final answer
    x = 813,542,780.23

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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.