Home / 530,341.20-731,856.81-288,618.59

Finding the Fourth Proportional to 530,341.20, 731,856.81 and 288,618.59

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Solution

The fourth proportional to 530,341.20, 731,856.81 and 288,618.59 is: 398,286.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,341.20 : 731,856.81 = 288,618.59 : x
  2. Step 2: Convert to fraction form
    530,341.20/731,856.81 = 288,618.59/x
  3. Step 3: Cross multiply
    530,341.20x = 731,856.81 × 288,618.59
  4. Step 4: Simplify right side
    530,341.20x = 211,227,476,924.81
  5. Step 5: Solve for x
    x = 211,227,476,924.81/530,341.20
  6. Step 6: Final answer
    x = 398,286.00

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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.