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Finding the Fourth Proportional to 318,556.33, 439,598.88 and 180,760.34

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Solution

The fourth proportional to 318,556.33, 439,598.88 and 180,760.34 is: 249,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,556.33 : 439,598.88 = 180,760.34 : x
  2. Step 2: Convert to fraction form
    318,556.33/439,598.88 = 180,760.34/x
  3. Step 3: Cross multiply
    318,556.33x = 439,598.88 × 180,760.34
  4. Step 4: Simplify right side
    318,556.33x = 79,462,044,111.42
  5. Step 5: Solve for x
    x = 79,462,044,111.42/318,556.33
  6. Step 6: Final answer
    x = 249,444.25

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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.