Home / 679,014.08-1,022,583.28-618,480.64

Finding the Fourth Proportional to 679,014.08, 1,022,583.28 and 618,480.64

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Solution

The fourth proportional to 679,014.08, 1,022,583.28 and 618,480.64 is: 931,420.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,014.08 : 1,022,583.28 = 618,480.64 : x
  2. Step 2: Convert to fraction form
    679,014.08/1,022,583.28 = 618,480.64/x
  3. Step 3: Cross multiply
    679,014.08x = 1,022,583.28 × 618,480.64
  4. Step 4: Simplify right side
    679,014.08x = 632,447,961,467.70
  5. Step 5: Solve for x
    x = 632,447,961,467.70/679,014.08
  6. Step 6: Final answer
    x = 931,420.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.