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Finding the Fourth Proportional to 359,649,969.85, 504,020,141.15 and 359,649,969.85

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Solution

The fourth proportional to 359,649,969.85, 504,020,141.15 and 359,649,969.85 is: 504,020,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,649,969.85 : 504,020,141.15 = 359,649,969.85 : x
  2. Step 2: Convert to fraction form
    359,649,969.85/504,020,141.15 = 359,649,969.85/x
  3. Step 3: Cross multiply
    359,649,969.85x = 504,020,141.15 × 359,649,969.85
  4. Step 4: Simplify right side
    359,649,969.85x = 181,270,828,568,390,240
  5. Step 5: Solve for x
    x = 181,270,828,568,390,240/359,649,969.85
  6. Step 6: Final answer
    x = 504,020,141.15

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.