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Finding the Fourth Proportional to 884,914.80, 1,328,063.40 and 411,658.80

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Solution

The fourth proportional to 884,914.80, 1,328,063.40 and 411,658.80 is: 617,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,914.80 : 1,328,063.40 = 411,658.80 : x
  2. Step 2: Convert to fraction form
    884,914.80/1,328,063.40 = 411,658.80/x
  3. Step 3: Cross multiply
    884,914.80x = 1,328,063.40 × 411,658.80
  4. Step 4: Simplify right side
    884,914.80x = 546,708,985,567.92
  5. Step 5: Solve for x
    x = 546,708,985,567.92/884,914.80
  6. Step 6: Final answer
    x = 617,809.74

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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.