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Finding the Fourth Proportional to 654,554.52, 903,279.56 and 368,068.50

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Solution

The fourth proportional to 654,554.52, 903,279.56 and 368,068.50 is: 507,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,554.52 : 903,279.56 = 368,068.50 : x
  2. Step 2: Convert to fraction form
    654,554.52/903,279.56 = 368,068.50/x
  3. Step 3: Cross multiply
    654,554.52x = 903,279.56 × 368,068.50
  4. Step 4: Simplify right side
    654,554.52x = 332,468,752,729.86
  5. Step 5: Solve for x
    x = 332,468,752,729.86/654,554.52
  6. Step 6: Final answer
    x = 507,931.34

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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.