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Finding the Fourth Proportional to 674,808.99, 931,236.60 and 368,886.71

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Solution

The fourth proportional to 674,808.99, 931,236.60 and 368,886.71 is: 509,063.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,808.99 : 931,236.60 = 368,886.71 : x
  2. Step 2: Convert to fraction form
    674,808.99/931,236.60 = 368,886.71/x
  3. Step 3: Cross multiply
    674,808.99x = 931,236.60 × 368,886.71
  4. Step 4: Simplify right side
    674,808.99x = 343,520,803,277.50
  5. Step 5: Solve for x
    x = 343,520,803,277.50/674,808.99
  6. Step 6: Final answer
    x = 509,063.76

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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.