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Finding the Fourth Proportional to 370,774.74, 511,397.37 and 243,403.86

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Solution

The fourth proportional to 370,774.74, 511,397.37 and 243,403.86 is: 335,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,774.74 : 511,397.37 = 243,403.86 : x
  2. Step 2: Convert to fraction form
    370,774.74/511,397.37 = 243,403.86/x
  3. Step 3: Cross multiply
    370,774.74x = 511,397.37 × 243,403.86
  4. Step 4: Simplify right side
    370,774.74x = 124,476,093,851.85
  5. Step 5: Solve for x
    x = 124,476,093,851.85/370,774.74
  6. Step 6: Final answer
    x = 335,718.92

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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.