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Finding the Fourth Proportional to 479,312,459.80, 718,968,689.70 and 246,860,166.40

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Solution

The fourth proportional to 479,312,459.80, 718,968,689.70 and 246,860,166.40 is: 370,290,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,312,459.80 : 718,968,689.70 = 246,860,166.40 : x
  2. Step 2: Convert to fraction form
    479,312,459.80/718,968,689.70 = 246,860,166.40/x
  3. Step 3: Cross multiply
    479,312,459.80x = 718,968,689.70 × 246,860,166.40
  4. Step 4: Simplify right side
    479,312,459.80x = 177,484,730,375,731,968
  5. Step 5: Solve for x
    x = 177,484,730,375,731,968/479,312,459.80
  6. Step 6: Final answer
    x = 370,290,249.60

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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.