Home / 530,298.38-731,811.88-291,834.38

Finding the Fourth Proportional to 530,298.38, 731,811.88 and 291,834.38

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Solution

The fourth proportional to 530,298.38, 731,811.88 and 291,834.38 is: 402,731.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,298.38 : 731,811.88 = 291,834.38 : x
  2. Step 2: Convert to fraction form
    530,298.38/731,811.88 = 291,834.38/x
  3. Step 3: Cross multiply
    530,298.38x = 731,811.88 × 291,834.38
  4. Step 4: Simplify right side
    530,298.38x = 213,567,861,887.79
  5. Step 5: Solve for x
    x = 213,567,861,887.79/530,298.38
  6. Step 6: Final answer
    x = 402,731.50

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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.