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Finding the Fourth Proportional to 603,184.80, 903,740.40 and 392,714.40

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Solution

The fourth proportional to 603,184.80, 903,740.40 and 392,714.40 is: 588,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,184.80 : 903,740.40 = 392,714.40 : x
  2. Step 2: Convert to fraction form
    603,184.80/903,740.40 = 392,714.40/x
  3. Step 3: Cross multiply
    603,184.80x = 903,740.40 × 392,714.40
  4. Step 4: Simplify right side
    603,184.80x = 354,911,868,941.76
  5. Step 5: Solve for x
    x = 354,911,868,941.76/603,184.80
  6. Step 6: Final answer
    x = 588,396.57

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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.