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Finding the Fourth Proportional to 420,901,272,130.60, 631,351,908,195.90 and 420,901,272,130.60

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Solution

The fourth proportional to 420,901,272,130.60, 631,351,908,195.90 and 420,901,272,130.60 is: 631,351,908,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,901,272,130.60 : 631,351,908,195.90 = 420,901,272,130.60 : x
  2. Step 2: Convert to fraction form
    420,901,272,130.60/631,351,908,195.90 = 420,901,272,130.60/x
  3. Step 3: Cross multiply
    420,901,272,130.60x = 631,351,908,195.90 × 420,901,272,130.60
  4. Step 4: Simplify right side
    420,901,272,130.60x = 265,736,821,321,736,105,492,480
  5. Step 5: Solve for x
    x = 265,736,821,321,736,105,492,480/420,901,272,130.60
  6. Step 6: Final answer
    x = 631,351,908,195.90

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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.