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Finding the Fourth Proportional to 368,726.04, 508,289.04 and 300,638.52

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Solution

The fourth proportional to 368,726.04, 508,289.04 and 300,638.52 is: 414,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,726.04 : 508,289.04 = 300,638.52 : x
  2. Step 2: Convert to fraction form
    368,726.04/508,289.04 = 300,638.52/x
  3. Step 3: Cross multiply
    368,726.04x = 508,289.04 × 300,638.52
  4. Step 4: Simplify right side
    368,726.04x = 152,811,264,717.82
  5. Step 5: Solve for x
    x = 152,811,264,717.82/368,726.04
  6. Step 6: Final answer
    x = 414,430.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.