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Finding the Fourth Proportional to 318,263.16, 477,394.74 and 151,545.72

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Solution

The fourth proportional to 318,263.16, 477,394.74 and 151,545.72 is: 227,318.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,263.16 : 477,394.74 = 151,545.72 : x
  2. Step 2: Convert to fraction form
    318,263.16/477,394.74 = 151,545.72/x
  3. Step 3: Cross multiply
    318,263.16x = 477,394.74 × 151,545.72
  4. Step 4: Simplify right side
    318,263.16x = 72,347,129,597.51
  5. Step 5: Solve for x
    x = 72,347,129,597.51/318,263.16
  6. Step 6: Final answer
    x = 227,318.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.