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Finding the Fourth Proportional to 5,280,768,429.55, 7,921,152,644.33 and 5,280,768,429.55

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Solution

The fourth proportional to 5,280,768,429.55, 7,921,152,644.33 and 5,280,768,429.55 is: 7,921,152,644.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,768,429.55 : 7,921,152,644.33 = 5,280,768,429.55 : x
  2. Step 2: Convert to fraction form
    5,280,768,429.55/7,921,152,644.33 = 5,280,768,429.55/x
  3. Step 3: Cross multiply
    5,280,768,429.55x = 7,921,152,644.33 × 5,280,768,429.55
  4. Step 4: Simplify right side
    5,280,768,429.55x = 41,829,772,809,824,362,496
  5. Step 5: Solve for x
    x = 41,829,772,809,824,362,496/5,280,768,429.55
  6. Step 6: Final answer
    x = 7,921,152,644.33

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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.