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Finding the Fourth Proportional to 554,563, 831,844.64 and 155,262.60

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Solution

The fourth proportional to 554,563, 831,844.64 and 155,262.60 is: 232,893.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,563 : 831,844.64 = 155,262.60 : x
  2. Step 2: Convert to fraction form
    554,563/831,844.64 = 155,262.60/x
  3. Step 3: Cross multiply
    554,563x = 831,844.64 × 155,262.60
  4. Step 4: Simplify right side
    554,563x = 129,154,361,602.46
  5. Step 5: Solve for x
    x = 129,154,361,602.46/554,563
  6. Step 6: Final answer
    x = 232,893.94

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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.