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Finding the Fourth Proportional to 598,855.40, 898,283.10 and 266,431.40

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Solution

The fourth proportional to 598,855.40, 898,283.10 and 266,431.40 is: 399,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,855.40 : 898,283.10 = 266,431.40 : x
  2. Step 2: Convert to fraction form
    598,855.40/898,283.10 = 266,431.40/x
  3. Step 3: Cross multiply
    598,855.40x = 898,283.10 × 266,431.40
  4. Step 4: Simplify right side
    598,855.40x = 239,330,823,929.34
  5. Step 5: Solve for x
    x = 239,330,823,929.34/598,855.40
  6. Step 6: Final answer
    x = 399,647.10

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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.