Home / 530,184.88-731,703.74-300,816.78

Finding the Fourth Proportional to 530,184.88, 731,703.74 and 300,816.78

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Solution

The fourth proportional to 530,184.88, 731,703.74 and 300,816.78 is: 415,154.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,184.88 : 731,703.74 = 300,816.78 : x
  2. Step 2: Convert to fraction form
    530,184.88/731,703.74 = 300,816.78/x
  3. Step 3: Cross multiply
    530,184.88x = 731,703.74 × 300,816.78
  4. Step 4: Simplify right side
    530,184.88x = 220,108,762,980.76
  5. Step 5: Solve for x
    x = 220,108,762,980.76/530,184.88
  6. Step 6: Final answer
    x = 415,154.73

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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.