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Finding the Fourth Proportional to 487,516.54, 730,675.88 and 273,835.28

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Solution

The fourth proportional to 487,516.54, 730,675.88 and 273,835.28 is: 410,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,516.54 : 730,675.88 = 273,835.28 : x
  2. Step 2: Convert to fraction form
    487,516.54/730,675.88 = 273,835.28/x
  3. Step 3: Cross multiply
    487,516.54x = 730,675.88 × 273,835.28
  4. Step 4: Simplify right side
    487,516.54x = 200,084,830,422.13
  5. Step 5: Solve for x
    x = 200,084,830,422.13/487,516.54
  6. Step 6: Final answer
    x = 410,416.50

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1.5x scale

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.