Home / 1,292,115.84-1,783,102-719,156.20

Finding the Fourth Proportional to 1,292,115.84, 1,783,102 and 719,156.20

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Solution

The fourth proportional to 1,292,115.84, 1,783,102 and 719,156.20 is: 992,425.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,115.84 : 1,783,102 = 719,156.20 : x
  2. Step 2: Convert to fraction form
    1,292,115.84/1,783,102 = 719,156.20/x
  3. Step 3: Cross multiply
    1,292,115.84x = 1,783,102 × 719,156.20
  4. Step 4: Simplify right side
    1,292,115.84x = 1,282,328,858,532.40
  5. Step 5: Solve for x
    x = 1,282,328,858,532.40/1,292,115.84
  6. Step 6: Final answer
    x = 992,425.62

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Double scale
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1.5x scale

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.