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Finding the Fourth Proportional to 420,901,272,077.73, 631,351,908,116.59 and 420,901,272,077.73

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Solution

The fourth proportional to 420,901,272,077.73, 631,351,908,116.59 and 420,901,272,077.73 is: 631,351,908,116.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,901,272,077.73 : 631,351,908,116.59 = 420,901,272,077.73 : x
  2. Step 2: Convert to fraction form
    420,901,272,077.73/631,351,908,116.59 = 420,901,272,077.73/x
  3. Step 3: Cross multiply
    420,901,272,077.73x = 631,351,908,116.59 × 420,901,272,077.73
  4. Step 4: Simplify right side
    420,901,272,077.73x = 265,736,821,254,974,798,299,136
  5. Step 5: Solve for x
    x = 265,736,821,254,974,798,299,136/420,901,272,077.73
  6. Step 6: Final answer
    x = 631,351,908,116.59

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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.