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Finding the Fourth Proportional to 660,042.19, 910,702.11 and 373,562.27

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Solution

The fourth proportional to 660,042.19, 910,702.11 and 373,562.27 is: 515,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,042.19 : 910,702.11 = 373,562.27 : x
  2. Step 2: Convert to fraction form
    660,042.19/910,702.11 = 373,562.27/x
  3. Step 3: Cross multiply
    660,042.19x = 910,702.11 × 373,562.27
  4. Step 4: Simplify right side
    660,042.19x = 340,203,947,505.39
  5. Step 5: Solve for x
    x = 340,203,947,505.39/660,042.19
  6. Step 6: Final answer
    x = 515,427.58

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Double scale
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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.