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Finding the Fourth Proportional to 543,830.20, 750,486.48 and 302,106.20

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Solution

The fourth proportional to 543,830.20, 750,486.48 and 302,106.20 is: 416,907.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,830.20 : 750,486.48 = 302,106.20 : x
  2. Step 2: Convert to fraction form
    543,830.20/750,486.48 = 302,106.20/x
  3. Step 3: Cross multiply
    543,830.20x = 750,486.48 × 302,106.20
  4. Step 4: Simplify right side
    543,830.20x = 226,726,618,624.18
  5. Step 5: Solve for x
    x = 226,726,618,624.18/543,830.20
  6. Step 6: Final answer
    x = 416,907.00

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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.