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Finding the Fourth Proportional to 368,461.60, 552,692.40 and 190,909.60

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Solution

The fourth proportional to 368,461.60, 552,692.40 and 190,909.60 is: 286,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,461.60 : 552,692.40 = 190,909.60 : x
  2. Step 2: Convert to fraction form
    368,461.60/552,692.40 = 190,909.60/x
  3. Step 3: Cross multiply
    368,461.60x = 552,692.40 × 190,909.60
  4. Step 4: Simplify right side
    368,461.60x = 105,514,285,007.04
  5. Step 5: Solve for x
    x = 105,514,285,007.04/368,461.60
  6. Step 6: Final answer
    x = 286,364.40

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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.