Home / 530,279.09-731,800.54-288,577.25

Finding the Fourth Proportional to 530,279.09, 731,800.54 and 288,577.25

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Solution

The fourth proportional to 530,279.09, 731,800.54 and 288,577.25 is: 398,244.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,279.09 : 731,800.54 = 288,577.25 : x
  2. Step 2: Convert to fraction form
    530,279.09/731,800.54 = 288,577.25/x
  3. Step 3: Cross multiply
    530,279.09x = 731,800.54 × 288,577.25
  4. Step 4: Simplify right side
    530,279.09x = 211,180,986,827.69
  5. Step 5: Solve for x
    x = 211,180,986,827.69/530,279.09
  6. Step 6: Final answer
    x = 398,244.98

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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.