Home / 911,320.20-1,257,775.40-529,568.40

Finding the Fourth Proportional to 911,320.20, 1,257,775.40 and 529,568.40

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Solution

The fourth proportional to 911,320.20, 1,257,775.40 and 529,568.40 is: 730,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,320.20 : 1,257,775.40 = 529,568.40 : x
  2. Step 2: Convert to fraction form
    911,320.20/1,257,775.40 = 529,568.40/x
  3. Step 3: Cross multiply
    911,320.20x = 1,257,775.40 × 529,568.40
  4. Step 4: Simplify right side
    911,320.20x = 666,078,106,137.36
  5. Step 5: Solve for x
    x = 666,078,106,137.36/911,320.20
  6. Step 6: Final answer
    x = 730,893.60

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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.