Home / 783,412.00-1,081,439.25-529,107.64

Finding the Fourth Proportional to 783,412.00, 1,081,439.25 and 529,107.64

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Solution

The fourth proportional to 783,412.00, 1,081,439.25 and 529,107.64 is: 730,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,412.00 : 1,081,439.25 = 529,107.64 : x
  2. Step 2: Convert to fraction form
    783,412.00/1,081,439.25 = 529,107.64/x
  3. Step 3: Cross multiply
    783,412.00x = 1,081,439.25 × 529,107.64
  4. Step 4: Simplify right side
    783,412.00x = 572,197,763,963.67
  5. Step 5: Solve for x
    x = 572,197,763,963.67/783,412.00
  6. Step 6: Final answer
    x = 730,391.89

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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.