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Finding the Fourth Proportional to 1,291,062,407.04, 1,781,664,370.56 and 704,351,543.04

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Solution

The fourth proportional to 1,291,062,407.04, 1,781,664,370.56 and 704,351,543.04 is: 972,004,174.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,062,407.04 : 1,781,664,370.56 = 704,351,543.04 : x
  2. Step 2: Convert to fraction form
    1,291,062,407.04/1,781,664,370.56 = 704,351,543.04/x
  3. Step 3: Cross multiply
    1,291,062,407.04x = 1,781,664,370.56 × 704,351,543.04
  4. Step 4: Simplify right side
    1,291,062,407.04x = 1,254,918,048,583,326,208
  5. Step 5: Solve for x
    x = 1,254,918,048,583,326,208/1,291,062,407.04
  6. Step 6: Final answer
    x = 972,004,174.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.