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Finding the Fourth Proportional to 1,108,216,312.76, 1,659,010,375.06 and 670,191,355.32

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Solution

The fourth proportional to 1,108,216,312.76, 1,659,010,375.06 and 670,191,355.32 is: 1,003,282,841.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,216,312.76 : 1,659,010,375.06 = 670,191,355.32 : x
  2. Step 2: Convert to fraction form
    1,108,216,312.76/1,659,010,375.06 = 670,191,355.32/x
  3. Step 3: Cross multiply
    1,108,216,312.76x = 1,659,010,375.06 × 670,191,355.32
  4. Step 4: Simplify right side
    1,108,216,312.76x = 1,111,854,411,751,403,008
  5. Step 5: Solve for x
    x = 1,111,854,411,751,403,008/1,108,216,312.76
  6. Step 6: Final answer
    x = 1,003,282,841.94

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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.