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Finding the Fourth Proportional to 320,053.95, 441,671.13 and 176,804.64

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Solution

The fourth proportional to 320,053.95, 441,671.13 and 176,804.64 is: 243,988.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,053.95 : 441,671.13 = 176,804.64 : x
  2. Step 2: Convert to fraction form
    320,053.95/441,671.13 = 176,804.64/x
  3. Step 3: Cross multiply
    320,053.95x = 441,671.13 × 176,804.64
  4. Step 4: Simplify right side
    320,053.95x = 78,089,505,138.04
  5. Step 5: Solve for x
    x = 78,089,505,138.04/320,053.95
  6. Step 6: Final answer
    x = 243,988.57

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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.