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Finding the Fourth Proportional to 629,347.64, 944,316.70 and 313,829.15

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Solution

The fourth proportional to 629,347.64, 944,316.70 and 313,829.15 is: 470,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,347.64 : 944,316.70 = 313,829.15 : x
  2. Step 2: Convert to fraction form
    629,347.64/944,316.70 = 313,829.15/x
  3. Step 3: Cross multiply
    629,347.64x = 944,316.70 × 313,829.15
  4. Step 4: Simplify right side
    629,347.64x = 296,354,101,785.65
  5. Step 5: Solve for x
    x = 296,354,101,785.65/629,347.64
  6. Step 6: Final answer
    x = 470,890.94

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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.