Home / 1,189,455.84-1,784,168.10-290,905.02

Finding the Fourth Proportional to 1,189,455.84, 1,784,168.10 and 290,905.02

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Solution

The fourth proportional to 1,189,455.84, 1,784,168.10 and 290,905.02 is: 436,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,455.84 : 1,784,168.10 = 290,905.02 : x
  2. Step 2: Convert to fraction form
    1,189,455.84/1,784,168.10 = 290,905.02/x
  3. Step 3: Cross multiply
    1,189,455.84x = 1,784,168.10 × 290,905.02
  4. Step 4: Simplify right side
    1,189,455.84x = 519,023,456,813.86
  5. Step 5: Solve for x
    x = 519,023,456,813.86/1,189,455.84
  6. Step 6: Final answer
    x = 436,353.70

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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.