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Finding the Fourth Proportional to 866,801.40, 1,299,683.70 and 446,897.40

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Solution

The fourth proportional to 866,801.40, 1,299,683.70 and 446,897.40 is: 670,078.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,801.40 : 1,299,683.70 = 446,897.40 : x
  2. Step 2: Convert to fraction form
    866,801.40/1,299,683.70 = 446,897.40/x
  3. Step 3: Cross multiply
    866,801.40x = 1,299,683.70 × 446,897.40
  4. Step 4: Simplify right side
    866,801.40x = 580,825,266,352.38
  5. Step 5: Solve for x
    x = 580,825,266,352.38/866,801.40
  6. Step 6: Final answer
    x = 670,078.83

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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.