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Finding the Fourth Proportional to 421,254,000.60, 631,030,695.30 and 421,254,000.60

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Solution

The fourth proportional to 421,254,000.60, 631,030,695.30 and 421,254,000.60 is: 631,030,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,254,000.60 : 631,030,695.30 = 421,254,000.60 : x
  2. Step 2: Convert to fraction form
    421,254,000.60/631,030,695.30 = 421,254,000.60/x
  3. Step 3: Cross multiply
    421,254,000.60x = 631,030,695.30 × 421,254,000.60
  4. Step 4: Simplify right side
    421,254,000.60x = 265,824,204,896,524,608
  5. Step 5: Solve for x
    x = 265,824,204,896,524,608/421,254,000.60
  6. Step 6: Final answer
    x = 631,030,695.30

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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.