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Finding the Fourth Proportional to 612,577.36, 918,866.08 and 191,886

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Solution

The fourth proportional to 612,577.36, 918,866.08 and 191,886 is: 287,829.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,577.36 : 918,866.08 = 191,886 : x
  2. Step 2: Convert to fraction form
    612,577.36/918,866.08 = 191,886/x
  3. Step 3: Cross multiply
    612,577.36x = 918,866.08 × 191,886
  4. Step 4: Simplify right side
    612,577.36x = 176,317,536,626.88
  5. Step 5: Solve for x
    x = 176,317,536,626.88/612,577.36
  6. Step 6: Final answer
    x = 287,829.01

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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.