Home / 530,629.26-732,261.51-288,909.06

Finding the Fourth Proportional to 530,629.26, 732,261.51 and 288,909.06

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Solution

The fourth proportional to 530,629.26, 732,261.51 and 288,909.06 is: 398,690.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,629.26 : 732,261.51 = 288,909.06 : x
  2. Step 2: Convert to fraction form
    530,629.26/732,261.51 = 288,909.06/x
  3. Step 3: Cross multiply
    530,629.26x = 732,261.51 × 288,909.06
  4. Step 4: Simplify right side
    530,629.26x = 211,556,984,528.28
  5. Step 5: Solve for x
    x = 211,556,984,528.28/530,629.26
  6. Step 6: Final answer
    x = 398,690.76

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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.