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Finding the Fourth Proportional to 609,197.76, 841,136.40 and 489,000.24

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Solution

The fourth proportional to 609,197.76, 841,136.40 and 489,000.24 is: 675,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,197.76 : 841,136.40 = 489,000.24 : x
  2. Step 2: Convert to fraction form
    609,197.76/841,136.40 = 489,000.24/x
  3. Step 3: Cross multiply
    609,197.76x = 841,136.40 × 489,000.24
  4. Step 4: Simplify right side
    609,197.76x = 411,315,901,472.74
  5. Step 5: Solve for x
    x = 411,315,901,472.74/609,197.76
  6. Step 6: Final answer
    x = 675,176.32

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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.