Home / 530,292.60-731,819.19-288,590.76

Finding the Fourth Proportional to 530,292.60, 731,819.19 and 288,590.76

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Solution

The fourth proportional to 530,292.60, 731,819.19 and 288,590.76 is: 398,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,292.60 : 731,819.19 = 288,590.76 : x
  2. Step 2: Convert to fraction form
    530,292.60/731,819.19 = 288,590.76/x
  3. Step 3: Cross multiply
    530,292.60x = 731,819.19 × 288,590.76
  4. Step 4: Simplify right side
    530,292.60x = 211,196,256,224.68
  5. Step 5: Solve for x
    x = 211,196,256,224.68/530,292.60
  6. Step 6: Final answer
    x = 398,263.63

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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.