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Finding the Fourth Proportional to 854,790.64, 1,179,537.60 and 472,722.32

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Solution

The fourth proportional to 854,790.64, 1,179,537.60 and 472,722.32 is: 652,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,790.64 : 1,179,537.60 = 472,722.32 : x
  2. Step 2: Convert to fraction form
    854,790.64/1,179,537.60 = 472,722.32/x
  3. Step 3: Cross multiply
    854,790.64x = 1,179,537.60 × 472,722.32
  4. Step 4: Simplify right side
    854,790.64x = 557,593,750,799.23
  5. Step 5: Solve for x
    x = 557,593,750,799.23/854,790.64
  6. Step 6: Final answer
    x = 652,316.16

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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.