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Finding the Fourth Proportional to 489,263.80, 733,895.70 and 453,834.40

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Solution

The fourth proportional to 489,263.80, 733,895.70 and 453,834.40 is: 680,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,263.80 : 733,895.70 = 453,834.40 : x
  2. Step 2: Convert to fraction form
    489,263.80/733,895.70 = 453,834.40/x
  3. Step 3: Cross multiply
    489,263.80x = 733,895.70 × 453,834.40
  4. Step 4: Simplify right side
    489,263.80x = 333,067,114,672.08
  5. Step 5: Solve for x
    x = 333,067,114,672.08/489,263.80
  6. Step 6: Final answer
    x = 680,751.60

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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.