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Finding the Fourth Proportional to 433,031.76, 597,660.78 and 318,476.70

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Solution

The fourth proportional to 433,031.76, 597,660.78 and 318,476.70 is: 439,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,031.76 : 597,660.78 = 318,476.70 : x
  2. Step 2: Convert to fraction form
    433,031.76/597,660.78 = 318,476.70/x
  3. Step 3: Cross multiply
    433,031.76x = 597,660.78 × 318,476.70
  4. Step 4: Simplify right side
    433,031.76x = 190,341,032,933.83
  5. Step 5: Solve for x
    x = 190,341,032,933.83/433,031.76
  6. Step 6: Final answer
    x = 439,554.44

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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.