Home / 997,856.10-1,496,784.15-287,907.30

Finding the Fourth Proportional to 997,856.10, 1,496,784.15 and 287,907.30

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Solution

The fourth proportional to 997,856.10, 1,496,784.15 and 287,907.30 is: 431,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,856.10 : 1,496,784.15 = 287,907.30 : x
  2. Step 2: Convert to fraction form
    997,856.10/1,496,784.15 = 287,907.30/x
  3. Step 3: Cross multiply
    997,856.10x = 1,496,784.15 × 287,907.30
  4. Step 4: Simplify right side
    997,856.10x = 430,935,083,309.30
  5. Step 5: Solve for x
    x = 430,935,083,309.30/997,856.10
  6. Step 6: Final answer
    x = 431,860.95

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Double scale
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Similar ratio
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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.