Home / 584,064.93-805,279.38-487,408.05

Finding the Fourth Proportional to 584,064.93, 805,279.38 and 487,408.05

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Solution

The fourth proportional to 584,064.93, 805,279.38 and 487,408.05 is: 672,013.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,064.93 : 805,279.38 = 487,408.05 : x
  2. Step 2: Convert to fraction form
    584,064.93/805,279.38 = 487,408.05/x
  3. Step 3: Cross multiply
    584,064.93x = 805,279.38 × 487,408.05
  4. Step 4: Simplify right side
    584,064.93x = 392,499,652,311.01
  5. Step 5: Solve for x
    x = 392,499,652,311.01/584,064.93
  6. Step 6: Final answer
    x = 672,013.73

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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.