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Finding the Fourth Proportional to 368,485.44, 508,503.84 and 207,340.32

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Solution

The fourth proportional to 368,485.44, 508,503.84 and 207,340.32 is: 286,126.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,485.44 : 508,503.84 = 207,340.32 : x
  2. Step 2: Convert to fraction form
    368,485.44/508,503.84 = 207,340.32/x
  3. Step 3: Cross multiply
    368,485.44x = 508,503.84 × 207,340.32
  4. Step 4: Simplify right side
    368,485.44x = 105,433,348,906.83
  5. Step 5: Solve for x
    x = 105,433,348,906.83/368,485.44
  6. Step 6: Final answer
    x = 286,126.23

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1.5x scale

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.