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Finding the Fourth Proportional to 487,407.48, 730,829.79 and 150,357.63

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Solution

The fourth proportional to 487,407.48, 730,829.79 and 150,357.63 is: 225,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,407.48 : 730,829.79 = 150,357.63 : x
  2. Step 2: Convert to fraction form
    487,407.48/730,829.79 = 150,357.63/x
  3. Step 3: Cross multiply
    487,407.48x = 730,829.79 × 150,357.63
  4. Step 4: Simplify right side
    487,407.48x = 109,885,835,157.80
  5. Step 5: Solve for x
    x = 109,885,835,157.80/487,407.48
  6. Step 6: Final answer
    x = 225,449.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.