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Finding the Fourth Proportional to 605,566,492.40, 908,774,891.40 and 260,767,571.60

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Solution

The fourth proportional to 605,566,492.40, 908,774,891.40 and 260,767,571.60 is: 391,334,435.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,566,492.40 : 908,774,891.40 = 260,767,571.60 : x
  2. Step 2: Convert to fraction form
    605,566,492.40/908,774,891.40 = 260,767,571.60/x
  3. Step 3: Cross multiply
    605,566,492.40x = 908,774,891.40 × 260,767,571.60
  4. Step 4: Simplify right side
    605,566,492.40x = 236,979,021,561,431,712
  5. Step 5: Solve for x
    x = 236,979,021,561,431,712/605,566,492.40
  6. Step 6: Final answer
    x = 391,334,435.67

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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.