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Finding the Fourth Proportional to 292,315.55, 403,674.02 and 276,394.81

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Solution

The fourth proportional to 292,315.55, 403,674.02 and 276,394.81 is: 381,688.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,315.55 : 403,674.02 = 276,394.81 : x
  2. Step 2: Convert to fraction form
    292,315.55/403,674.02 = 276,394.81/x
  3. Step 3: Cross multiply
    292,315.55x = 403,674.02 × 276,394.81
  4. Step 4: Simplify right side
    292,315.55x = 111,573,405,016.77
  5. Step 5: Solve for x
    x = 111,573,405,016.77/292,315.55
  6. Step 6: Final answer
    x = 381,688.24

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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.