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Finding the Fourth Proportional to 349,515.81, 483,191.73 and 346,318.70

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Solution

The fourth proportional to 349,515.81, 483,191.73 and 346,318.70 is: 478,771.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,515.81 : 483,191.73 = 346,318.70 : x
  2. Step 2: Convert to fraction form
    349,515.81/483,191.73 = 346,318.70/x
  3. Step 3: Cross multiply
    349,515.81x = 483,191.73 × 346,318.70
  4. Step 4: Simplify right side
    349,515.81x = 167,338,329,368.39
  5. Step 5: Solve for x
    x = 167,338,329,368.39/349,515.81
  6. Step 6: Final answer
    x = 478,771.85

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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.