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Finding the Fourth Proportional to 386,113.51, 532,836.80 and 235,210.51

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Solution

The fourth proportional to 386,113.51, 532,836.80 and 235,210.51 is: 324,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,113.51 : 532,836.80 = 235,210.51 : x
  2. Step 2: Convert to fraction form
    386,113.51/532,836.80 = 235,210.51/x
  3. Step 3: Cross multiply
    386,113.51x = 532,836.80 × 235,210.51
  4. Step 4: Simplify right side
    386,113.51x = 125,328,815,474.77
  5. Step 5: Solve for x
    x = 125,328,815,474.77/386,113.51
  6. Step 6: Final answer
    x = 324,590.60

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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.