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Finding the Fourth Proportional to 435,079.60, 651,755.40 and 383,124.40

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Solution

The fourth proportional to 435,079.60, 651,755.40 and 383,124.40 is: 573,925.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,079.60 : 651,755.40 = 383,124.40 : x
  2. Step 2: Convert to fraction form
    435,079.60/651,755.40 = 383,124.40/x
  3. Step 3: Cross multiply
    435,079.60x = 651,755.40 × 383,124.40
  4. Step 4: Simplify right side
    435,079.60x = 249,703,396,571.76
  5. Step 5: Solve for x
    x = 249,703,396,571.76/435,079.60
  6. Step 6: Final answer
    x = 573,925.77

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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.