Home / 530,285.92-731,809.95-288,584.08

Finding the Fourth Proportional to 530,285.92, 731,809.95 and 288,584.08

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Solution

The fourth proportional to 530,285.92, 731,809.95 and 288,584.08 is: 398,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,285.92 : 731,809.95 = 288,584.08 : x
  2. Step 2: Convert to fraction form
    530,285.92/731,809.95 = 288,584.08/x
  3. Step 3: Cross multiply
    530,285.92x = 731,809.95 × 288,584.08
  4. Step 4: Simplify right side
    530,285.92x = 211,188,701,155.60
  5. Step 5: Solve for x
    x = 211,188,701,155.60/530,285.92
  6. Step 6: Final answer
    x = 398,254.40

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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.