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Finding the Fourth Proportional to 674,597.96, 930,947.58 and 368,674.25

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Solution

The fourth proportional to 674,597.96, 930,947.58 and 368,674.25 is: 508,771.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,597.96 : 930,947.58 = 368,674.25 : x
  2. Step 2: Convert to fraction form
    674,597.96/930,947.58 = 368,674.25/x
  3. Step 3: Cross multiply
    674,597.96x = 930,947.58 × 368,674.25
  4. Step 4: Simplify right side
    674,597.96x = 343,216,397,500.22
  5. Step 5: Solve for x
    x = 343,216,397,500.22/674,597.96
  6. Step 6: Final answer
    x = 508,771.77

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Double scale
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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.