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Finding the Fourth Proportional to 366,918.70, 550,378.05 and 314,430.70

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Solution

The fourth proportional to 366,918.70, 550,378.05 and 314,430.70 is: 471,646.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,918.70 : 550,378.05 = 314,430.70 : x
  2. Step 2: Convert to fraction form
    366,918.70/550,378.05 = 314,430.70/x
  3. Step 3: Cross multiply
    366,918.70x = 550,378.05 × 314,430.70
  4. Step 4: Simplify right side
    366,918.70x = 173,055,755,526.14
  5. Step 5: Solve for x
    x = 173,055,755,526.14/366,918.70
  6. Step 6: Final answer
    x = 471,646.05

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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.