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Finding the Fourth Proportional to 832,850, 1,249,772.55 and 765,090.66

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Solution

The fourth proportional to 832,850, 1,249,772.55 and 765,090.66 is: 1,148,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,850 : 1,249,772.55 = 765,090.66 : x
  2. Step 2: Convert to fraction form
    832,850/1,249,772.55 = 765,090.66/x
  3. Step 3: Cross multiply
    832,850x = 1,249,772.55 × 765,090.66
  4. Step 4: Simplify right side
    832,850x = 956,189,305,129.38
  5. Step 5: Solve for x
    x = 956,189,305,129.38/832,850
  6. Step 6: Final answer
    x = 1,148,093.06

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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.