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Finding the Fourth Proportional to 528,486,543.45, 792,729,815.18 and 528,486,543.45

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Solution

The fourth proportional to 528,486,543.45, 792,729,815.18 and 528,486,543.45 is: 792,729,815.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,486,543.45 : 792,729,815.18 = 528,486,543.45 : x
  2. Step 2: Convert to fraction form
    528,486,543.45/792,729,815.18 = 528,486,543.45/x
  3. Step 3: Cross multiply
    528,486,543.45x = 792,729,815.18 × 528,486,543.45
  4. Step 4: Simplify right side
    528,486,543.45x = 418,947,039,911,593,088
  5. Step 5: Solve for x
    x = 418,947,039,911,593,088/528,486,543.45
  6. Step 6: Final answer
    x = 792,729,815.18

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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.