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Finding the Fourth Proportional to 1,070.42, 1,477.14 and 604.67

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Solution

The fourth proportional to 1,070.42, 1,477.14 and 604.67 is: 834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.42 : 1,477.14 = 604.67 : x
  2. Step 2: Convert to fraction form
    1,070.42/1,477.14 = 604.67/x
  3. Step 3: Cross multiply
    1,070.42x = 1,477.14 × 604.67
  4. Step 4: Simplify right side
    1,070.42x = 893,172.59
  5. Step 5: Solve for x
    x = 893,172.59/1,070.42
  6. Step 6: Final answer
    x = 834.42

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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.