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Finding the Fourth Proportional to 296,085.84, 408,483.72 and 188,636.64

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Solution

The fourth proportional to 296,085.84, 408,483.72 and 188,636.64 is: 260,245.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,085.84 : 408,483.72 = 188,636.64 : x
  2. Step 2: Convert to fraction form
    296,085.84/408,483.72 = 188,636.64/x
  3. Step 3: Cross multiply
    296,085.84x = 408,483.72 × 188,636.64
  4. Step 4: Simplify right side
    296,085.84x = 77,054,996,435.50
  5. Step 5: Solve for x
    x = 77,054,996,435.50/296,085.84
  6. Step 6: Final answer
    x = 260,245.46

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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.