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Finding the Fourth Proportional to 489,085.40, 733,628.10 and 302,461.40

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Solution

The fourth proportional to 489,085.40, 733,628.10 and 302,461.40 is: 453,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,085.40 : 733,628.10 = 302,461.40 : x
  2. Step 2: Convert to fraction form
    489,085.40/733,628.10 = 302,461.40/x
  3. Step 3: Cross multiply
    489,085.40x = 733,628.10 × 302,461.40
  4. Step 4: Simplify right side
    489,085.40x = 221,894,182,205.34
  5. Step 5: Solve for x
    x = 221,894,182,205.34/489,085.40
  6. Step 6: Final answer
    x = 453,692.10

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Similar ratio
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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.