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Finding the Fourth Proportional to 663,922.52, 916,224 and 362,116.52

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Solution

The fourth proportional to 663,922.52, 916,224 and 362,116.52 is: 499,726.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,922.52 : 916,224 = 362,116.52 : x
  2. Step 2: Convert to fraction form
    663,922.52/916,224 = 362,116.52/x
  3. Step 3: Cross multiply
    663,922.52x = 916,224 × 362,116.52
  4. Step 4: Simplify right side
    663,922.52x = 331,779,846,420.48
  5. Step 5: Solve for x
    x = 331,779,846,420.48/663,922.52
  6. Step 6: Final answer
    x = 499,726.75

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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.