Home / 781,519.14-1,078,554.39-437,389.56

Finding the Fourth Proportional to 781,519.14, 1,078,554.39 and 437,389.56

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Solution

The fourth proportional to 781,519.14, 1,078,554.39 and 437,389.56 is: 603,630.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,519.14 : 1,078,554.39 = 437,389.56 : x
  2. Step 2: Convert to fraction form
    781,519.14/1,078,554.39 = 437,389.56/x
  3. Step 3: Cross multiply
    781,519.14x = 1,078,554.39 × 437,389.56
  4. Step 4: Simplify right side
    781,519.14x = 471,748,430,078.17
  5. Step 5: Solve for x
    x = 471,748,430,078.17/781,519.14
  6. Step 6: Final answer
    x = 603,630.04

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.