Home / 692,905.40-1,040,135.70-535,830.20

Finding the Fourth Proportional to 692,905.40, 1,040,135.70 and 535,830.20

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Solution

The fourth proportional to 692,905.40, 1,040,135.70 and 535,830.20 is: 804,346.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,905.40 : 1,040,135.70 = 535,830.20 : x
  2. Step 2: Convert to fraction form
    692,905.40/1,040,135.70 = 535,830.20/x
  3. Step 3: Cross multiply
    692,905.40x = 1,040,135.70 × 535,830.20
  4. Step 4: Simplify right side
    692,905.40x = 557,336,120,158.14
  5. Step 5: Solve for x
    x = 557,336,120,158.14/692,905.40
  6. Step 6: Final answer
    x = 804,346.63

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1.5x scale

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.