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Finding the Fourth Proportional to 676,223.70, 933,190.65 and 370,302.90

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Solution

The fourth proportional to 676,223.70, 933,190.65 and 370,302.90 is: 511,019.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,223.70 : 933,190.65 = 370,302.90 : x
  2. Step 2: Convert to fraction form
    676,223.70/933,190.65 = 370,302.90/x
  3. Step 3: Cross multiply
    676,223.70x = 933,190.65 × 370,302.90
  4. Step 4: Simplify right side
    676,223.70x = 345,563,203,947.89
  5. Step 5: Solve for x
    x = 345,563,203,947.89/676,223.70
  6. Step 6: Final answer
    x = 511,019.07

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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.