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Finding the Fourth Proportional to 423,095.53, 630,245.87 and 400,176.67

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Solution

The fourth proportional to 423,095.53, 630,245.87 and 400,176.67 is: 596,105.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,095.53 : 630,245.87 = 400,176.67 : x
  2. Step 2: Convert to fraction form
    423,095.53/630,245.87 = 400,176.67/x
  3. Step 3: Cross multiply
    423,095.53x = 630,245.87 × 400,176.67
  4. Step 4: Simplify right side
    423,095.53x = 252,209,693,537.85
  5. Step 5: Solve for x
    x = 252,209,693,537.85/423,095.53
  6. Step 6: Final answer
    x = 596,105.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.