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Finding the Fourth Proportional to 368,840.80, 552,386.40 and 368,840.80

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Solution

The fourth proportional to 368,840.80, 552,386.40 and 368,840.80 is: 552,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,840.80 : 552,386.40 = 368,840.80 : x
  2. Step 2: Convert to fraction form
    368,840.80/552,386.40 = 368,840.80/x
  3. Step 3: Cross multiply
    368,840.80x = 552,386.40 × 368,840.80
  4. Step 4: Simplify right side
    368,840.80x = 203,742,641,685.12
  5. Step 5: Solve for x
    x = 203,742,641,685.12/368,840.80
  6. Step 6: Final answer
    x = 552,386.40

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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.