Home / 626,624.40-939,936.60-289,664.40

Finding the Fourth Proportional to 626,624.40, 939,936.60 and 289,664.40

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Solution

The fourth proportional to 626,624.40, 939,936.60 and 289,664.40 is: 434,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,624.40 : 939,936.60 = 289,664.40 : x
  2. Step 2: Convert to fraction form
    626,624.40/939,936.60 = 289,664.40/x
  3. Step 3: Cross multiply
    626,624.40x = 939,936.60 × 289,664.40
  4. Step 4: Simplify right side
    626,624.40x = 272,266,171,277.04
  5. Step 5: Solve for x
    x = 272,266,171,277.04/626,624.40
  6. Step 6: Final answer
    x = 434,496.60

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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.