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Finding the Fourth Proportional to 707,051.10, 975,750.86 and 384,781.60

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Solution

The fourth proportional to 707,051.10, 975,750.86 and 384,781.60 is: 531,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,051.10 : 975,750.86 = 384,781.60 : x
  2. Step 2: Convert to fraction form
    707,051.10/975,750.86 = 384,781.60/x
  3. Step 3: Cross multiply
    707,051.10x = 975,750.86 × 384,781.60
  4. Step 4: Simplify right side
    707,051.10x = 375,450,977,112.18
  5. Step 5: Solve for x
    x = 375,450,977,112.18/707,051.10
  6. Step 6: Final answer
    x = 531,009.68

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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.