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Finding the Fourth Proportional to 907,266.80, 1,360,900.20 and 374,610.80

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Solution

The fourth proportional to 907,266.80, 1,360,900.20 and 374,610.80 is: 561,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,266.80 : 1,360,900.20 = 374,610.80 : x
  2. Step 2: Convert to fraction form
    907,266.80/1,360,900.20 = 374,610.80/x
  3. Step 3: Cross multiply
    907,266.80x = 1,360,900.20 × 374,610.80
  4. Step 4: Simplify right side
    907,266.80x = 509,807,912,642.16
  5. Step 5: Solve for x
    x = 509,807,912,642.16/907,266.80
  6. Step 6: Final answer
    x = 561,916.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.