Home / 530,194.07-731,645.88-288,477.57

Finding the Fourth Proportional to 530,194.07, 731,645.88 and 288,477.57

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Solution

The fourth proportional to 530,194.07, 731,645.88 and 288,477.57 is: 398,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,194.07 : 731,645.88 = 288,477.57 : x
  2. Step 2: Convert to fraction form
    530,194.07/731,645.88 = 288,477.57/x
  3. Step 3: Cross multiply
    530,194.07x = 731,645.88 × 288,477.57
  4. Step 4: Simplify right side
    530,194.07x = 211,063,425,562.91
  5. Step 5: Solve for x
    x = 211,063,425,562.91/530,194.07
  6. Step 6: Final answer
    x = 398,087.11

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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.