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Finding the Fourth Proportional to 705,812.69, 974,019.66 and 383,522.81

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Solution

The fourth proportional to 705,812.69, 974,019.66 and 383,522.81 is: 529,260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,812.69 : 974,019.66 = 383,522.81 : x
  2. Step 2: Convert to fraction form
    705,812.69/974,019.66 = 383,522.81/x
  3. Step 3: Cross multiply
    705,812.69x = 974,019.66 × 383,522.81
  4. Step 4: Simplify right side
    705,812.69x = 373,558,752,128.35
  5. Step 5: Solve for x
    x = 373,558,752,128.35/705,812.69
  6. Step 6: Final answer
    x = 529,260.47

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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.