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Finding the Fourth Proportional to 391,718.53, 537,051.08 and 384,632.65

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Solution

The fourth proportional to 391,718.53, 537,051.08 and 384,632.65 is: 527,336.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,718.53 : 537,051.08 = 384,632.65 : x
  2. Step 2: Convert to fraction form
    391,718.53/537,051.08 = 384,632.65/x
  3. Step 3: Cross multiply
    391,718.53x = 537,051.08 × 384,632.65
  4. Step 4: Simplify right side
    391,718.53x = 206,567,380,085.76
  5. Step 5: Solve for x
    x = 206,567,380,085.76/391,718.53
  6. Step 6: Final answer
    x = 527,336.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.