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Finding the Fourth Proportional to 360,038.45, 496,851.47 and 198,893.58

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Solution

The fourth proportional to 360,038.45, 496,851.47 and 198,893.58 is: 274,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,038.45 : 496,851.47 = 198,893.58 : x
  2. Step 2: Convert to fraction form
    360,038.45/496,851.47 = 198,893.58/x
  3. Step 3: Cross multiply
    360,038.45x = 496,851.47 × 198,893.58
  4. Step 4: Simplify right side
    360,038.45x = 98,820,565,484.75
  5. Step 5: Solve for x
    x = 98,820,565,484.75/360,038.45
  6. Step 6: Final answer
    x = 274,472.25

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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.