Home / 862,647.36-1,190,437.28-480,665.92

Finding the Fourth Proportional to 862,647.36, 1,190,437.28 and 480,665.92

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Solution

The fourth proportional to 862,647.36, 1,190,437.28 and 480,665.92 is: 663,310.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,647.36 : 1,190,437.28 = 480,665.92 : x
  2. Step 2: Convert to fraction form
    862,647.36/1,190,437.28 = 480,665.92/x
  3. Step 3: Cross multiply
    862,647.36x = 1,190,437.28 × 480,665.92
  4. Step 4: Simplify right side
    862,647.36x = 572,202,630,393.50
  5. Step 5: Solve for x
    x = 572,202,630,393.50/862,647.36
  6. Step 6: Final answer
    x = 663,310.01

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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.