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Finding the Fourth Proportional to 289,503.04, 436,226.68 and 238,064.80

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Solution

The fourth proportional to 289,503.04, 436,226.68 and 238,064.80 is: 358,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,503.04 : 436,226.68 = 238,064.80 : x
  2. Step 2: Convert to fraction form
    289,503.04/436,226.68 = 238,064.80/x
  3. Step 3: Cross multiply
    289,503.04x = 436,226.68 × 238,064.80
  4. Step 4: Simplify right side
    289,503.04x = 103,850,217,328.86
  5. Step 5: Solve for x
    x = 103,850,217,328.86/289,503.04
  6. Step 6: Final answer
    x = 358,718.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.