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Finding the Fourth Proportional to 292,511.40, 438,767.10 and 191,034.60

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Solution

The fourth proportional to 292,511.40, 438,767.10 and 191,034.60 is: 286,551.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,511.40 : 438,767.10 = 191,034.60 : x
  2. Step 2: Convert to fraction form
    292,511.40/438,767.10 = 191,034.60/x
  3. Step 3: Cross multiply
    292,511.40x = 438,767.10 × 191,034.60
  4. Step 4: Simplify right side
    292,511.40x = 83,819,697,441.66
  5. Step 5: Solve for x
    x = 83,819,697,441.66/292,511.40
  6. Step 6: Final answer
    x = 286,551.90

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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.