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Finding the Fourth Proportional to 869,208.34, 1,303,484.82 and 363,804.34

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Solution

The fourth proportional to 869,208.34, 1,303,484.82 and 363,804.34 is: 545,569.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,208.34 : 1,303,484.82 = 363,804.34 : x
  2. Step 2: Convert to fraction form
    869,208.34/1,303,484.82 = 363,804.34/x
  3. Step 3: Cross multiply
    869,208.34x = 1,303,484.82 × 363,804.34
  4. Step 4: Simplify right side
    869,208.34x = 474,213,434,640.12
  5. Step 5: Solve for x
    x = 474,213,434,640.12/869,208.34
  6. Step 6: Final answer
    x = 545,569.36

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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.