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Finding the Fourth Proportional to 528,205.80, 792,308.70 and 499,337.40

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Solution

The fourth proportional to 528,205.80, 792,308.70 and 499,337.40 is: 749,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,205.80 : 792,308.70 = 499,337.40 : x
  2. Step 2: Convert to fraction form
    528,205.80/792,308.70 = 499,337.40/x
  3. Step 3: Cross multiply
    528,205.80x = 792,308.70 × 499,337.40
  4. Step 4: Simplify right side
    528,205.80x = 395,629,366,255.38
  5. Step 5: Solve for x
    x = 395,629,366,255.38/528,205.80
  6. Step 6: Final answer
    x = 749,006.10

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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.