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Finding the Fourth Proportional to 316,030.64, 436,413.30 and 203,050.24

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Solution

The fourth proportional to 316,030.64, 436,413.30 and 203,050.24 is: 280,396.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,030.64 : 436,413.30 = 203,050.24 : x
  2. Step 2: Convert to fraction form
    316,030.64/436,413.30 = 203,050.24/x
  3. Step 3: Cross multiply
    316,030.64x = 436,413.30 × 203,050.24
  4. Step 4: Simplify right side
    316,030.64x = 88,613,825,304.19
  5. Step 5: Solve for x
    x = 88,613,825,304.19/316,030.64
  6. Step 6: Final answer
    x = 280,396.31

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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.