Home / 619,013.40-853,924.08-404,279.16

Finding the Fourth Proportional to 619,013.40, 853,924.08 and 404,279.16

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Solution

The fourth proportional to 619,013.40, 853,924.08 and 404,279.16 is: 557,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,013.40 : 853,924.08 = 404,279.16 : x
  2. Step 2: Convert to fraction form
    619,013.40/853,924.08 = 404,279.16/x
  3. Step 3: Cross multiply
    619,013.40x = 853,924.08 × 404,279.16
  4. Step 4: Simplify right side
    619,013.40x = 345,223,709,766.17
  5. Step 5: Solve for x
    x = 345,223,709,766.17/619,013.40
  6. Step 6: Final answer
    x = 557,699.90

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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.