Home / 879,386.20-1,319,079.30-214,538.20

Finding the Fourth Proportional to 879,386.20, 1,319,079.30 and 214,538.20

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Solution

The fourth proportional to 879,386.20, 1,319,079.30 and 214,538.20 is: 321,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,386.20 : 1,319,079.30 = 214,538.20 : x
  2. Step 2: Convert to fraction form
    879,386.20/1,319,079.30 = 214,538.20/x
  3. Step 3: Cross multiply
    879,386.20x = 1,319,079.30 × 214,538.20
  4. Step 4: Simplify right side
    879,386.20x = 282,992,898,679.26
  5. Step 5: Solve for x
    x = 282,992,898,679.26/879,386.20
  6. Step 6: Final answer
    x = 321,807.30

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Double scale
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Similar ratio
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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.