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Finding the Fourth Proportional to 1,277,125,404.30, 1,915,688,106.45 and 1,277,125,404.30

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Solution

The fourth proportional to 1,277,125,404.30, 1,915,688,106.45 and 1,277,125,404.30 is: 1,915,688,106.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,125,404.30 : 1,915,688,106.45 = 1,277,125,404.30 : x
  2. Step 2: Convert to fraction form
    1,277,125,404.30/1,915,688,106.45 = 1,277,125,404.30/x
  3. Step 3: Cross multiply
    1,277,125,404.30x = 1,915,688,106.45 × 1,277,125,404.30
  4. Step 4: Simplify right side
    1,277,125,404.30x = 2,446,573,947,462,657,536
  5. Step 5: Solve for x
    x = 2,446,573,947,462,657,536/1,277,125,404.30
  6. Step 6: Final answer
    x = 1,915,688,106.45

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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.