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Finding the Fourth Proportional to 556,035.90, 767,330.31 and 301,387.02

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Solution

The fourth proportional to 556,035.90, 767,330.31 and 301,387.02 is: 415,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,035.90 : 767,330.31 = 301,387.02 : x
  2. Step 2: Convert to fraction form
    556,035.90/767,330.31 = 301,387.02/x
  3. Step 3: Cross multiply
    556,035.90x = 767,330.31 × 301,387.02
  4. Step 4: Simplify right side
    556,035.90x = 231,263,395,486.58
  5. Step 5: Solve for x
    x = 231,263,395,486.58/556,035.90
  6. Step 6: Final answer
    x = 415,914.50

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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.