Home / 1,211,996.95-1,672,567.08-668,152.20

Finding the Fourth Proportional to 1,211,996.95, 1,672,567.08 and 668,152.20

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Solution

The fourth proportional to 1,211,996.95, 1,672,567.08 and 668,152.20 is: 922,056.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,996.95 : 1,672,567.08 = 668,152.20 : x
  2. Step 2: Convert to fraction form
    1,211,996.95/1,672,567.08 = 668,152.20/x
  3. Step 3: Cross multiply
    1,211,996.95x = 1,672,567.08 × 668,152.20
  4. Step 4: Simplify right side
    1,211,996.95x = 1,117,529,375,091.21
  5. Step 5: Solve for x
    x = 1,117,529,375,091.21/1,211,996.95
  6. Step 6: Final answer
    x = 922,056.26

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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.