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Finding the Fourth Proportional to 543,436.26, 749,907.33 and 301,718.76

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Solution

The fourth proportional to 543,436.26, 749,907.33 and 301,718.76 is: 416,352.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,436.26 : 749,907.33 = 301,718.76 : x
  2. Step 2: Convert to fraction form
    543,436.26/749,907.33 = 301,718.76/x
  3. Step 3: Cross multiply
    543,436.26x = 749,907.33 × 301,718.76
  4. Step 4: Simplify right side
    543,436.26x = 226,261,109,722.51
  5. Step 5: Solve for x
    x = 226,261,109,722.51/543,436.26
  6. Step 6: Final answer
    x = 416,352.62

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Half scale
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Double scale
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Similar ratio
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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.