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Finding the Fourth Proportional to 2,987,308,839.90, 4,480,963,259.85 and 2,987,308,839.90

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Solution

The fourth proportional to 2,987,308,839.90, 4,480,963,259.85 and 2,987,308,839.90 is: 4,480,963,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,308,839.90 : 4,480,963,259.85 = 2,987,308,839.90 : x
  2. Step 2: Convert to fraction form
    2,987,308,839.90/4,480,963,259.85 = 2,987,308,839.90/x
  3. Step 3: Cross multiply
    2,987,308,839.90x = 4,480,963,259.85 × 2,987,308,839.90
  4. Step 4: Simplify right side
    2,987,308,839.90x = 13,386,021,157,417,027,584
  5. Step 5: Solve for x
    x = 13,386,021,157,417,027,584/2,987,308,839.90
  6. Step 6: Final answer
    x = 4,480,963,259.85

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1.5x scale

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.