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Finding the Fourth Proportional to 451,886.40, 623,094.24 and 369,960

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Solution

The fourth proportional to 451,886.40, 623,094.24 and 369,960 is: 510,128.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,886.40 : 623,094.24 = 369,960 : x
  2. Step 2: Convert to fraction form
    451,886.40/623,094.24 = 369,960/x
  3. Step 3: Cross multiply
    451,886.40x = 623,094.24 × 369,960
  4. Step 4: Simplify right side
    451,886.40x = 230,519,945,030.40
  5. Step 5: Solve for x
    x = 230,519,945,030.40/451,886.40
  6. Step 6: Final answer
    x = 510,128.09

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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.