Home / 920,938.50-1,381,628.95-352,310.30

Finding the Fourth Proportional to 920,938.50, 1,381,628.95 and 352,310.30

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Solution

The fourth proportional to 920,938.50, 1,381,628.95 and 352,310.30 is: 528,550.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,938.50 : 1,381,628.95 = 352,310.30 : x
  2. Step 2: Convert to fraction form
    920,938.50/1,381,628.95 = 352,310.30/x
  3. Step 3: Cross multiply
    920,938.50x = 1,381,628.95 × 352,310.30
  4. Step 4: Simplify right side
    920,938.50x = 486,762,109,863.19
  5. Step 5: Solve for x
    x = 486,762,109,863.19/920,938.50
  6. Step 6: Final answer
    x = 528,550.07

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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.