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Finding the Fourth Proportional to 605,852.70, 908,779.05 and 290,147.10

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Solution

The fourth proportional to 605,852.70, 908,779.05 and 290,147.10 is: 435,220.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,852.70 : 908,779.05 = 290,147.10 : x
  2. Step 2: Convert to fraction form
    605,852.70/908,779.05 = 290,147.10/x
  3. Step 3: Cross multiply
    605,852.70x = 908,779.05 × 290,147.10
  4. Step 4: Simplify right side
    605,852.70x = 263,679,605,898.26
  5. Step 5: Solve for x
    x = 263,679,605,898.26/605,852.70
  6. Step 6: Final answer
    x = 435,220.65

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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.