Home / 530,131.04-731,584.01-288,415.34

Finding the Fourth Proportional to 530,131.04, 731,584.01 and 288,415.34

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Solution

The fourth proportional to 530,131.04, 731,584.01 and 288,415.34 is: 398,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,131.04 : 731,584.01 = 288,415.34 : x
  2. Step 2: Convert to fraction form
    530,131.04/731,584.01 = 288,415.34/x
  3. Step 3: Cross multiply
    530,131.04x = 731,584.01 × 288,415.34
  4. Step 4: Simplify right side
    530,131.04x = 211,000,053,532.71
  5. Step 5: Solve for x
    x = 211,000,053,532.71/530,131.04
  6. Step 6: Final answer
    x = 398,014.90

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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.