Home / 530,319.37-731,857.19-300,886.28

Finding the Fourth Proportional to 530,319.37, 731,857.19 and 300,886.28

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Solution

The fourth proportional to 530,319.37, 731,857.19 and 300,886.28 is: 415,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,319.37 : 731,857.19 = 300,886.28 : x
  2. Step 2: Convert to fraction form
    530,319.37/731,857.19 = 300,886.28/x
  3. Step 3: Cross multiply
    530,319.37x = 731,857.19 × 300,886.28
  4. Step 4: Simplify right side
    530,319.37x = 220,205,787,390.35
  5. Step 5: Solve for x
    x = 220,205,787,390.35/530,319.37
  6. Step 6: Final answer
    x = 415,232.40

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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.