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Finding the Fourth Proportional to 368,903.40, 553,852.62 and 236,043

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Solution

The fourth proportional to 368,903.40, 553,852.62 and 236,043 is: 354,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,903.40 : 553,852.62 = 236,043 : x
  2. Step 2: Convert to fraction form
    368,903.40/553,852.62 = 236,043/x
  3. Step 3: Cross multiply
    368,903.40x = 553,852.62 × 236,043
  4. Step 4: Simplify right side
    368,903.40x = 130,733,033,982.66
  5. Step 5: Solve for x
    x = 130,733,033,982.66/368,903.40
  6. Step 6: Final answer
    x = 354,382.84

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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.