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Finding the Fourth Proportional to 653,386.70, 901,673.67 and 366,906.81

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Solution

The fourth proportional to 653,386.70, 901,673.67 and 366,906.81 is: 506,331.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,386.70 : 901,673.67 = 366,906.81 : x
  2. Step 2: Convert to fraction form
    653,386.70/901,673.67 = 366,906.81/x
  3. Step 3: Cross multiply
    653,386.70x = 901,673.67 × 366,906.81
  4. Step 4: Simplify right side
    653,386.70x = 330,830,214,677.87
  5. Step 5: Solve for x
    x = 330,830,214,677.87/653,386.70
  6. Step 6: Final answer
    x = 506,331.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.