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Finding the Fourth Proportional to 359,649,968.60, 504,020,139.40 and 359,649,968.60

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Solution

The fourth proportional to 359,649,968.60, 504,020,139.40 and 359,649,968.60 is: 504,020,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,649,968.60 : 504,020,139.40 = 359,649,968.60 : x
  2. Step 2: Convert to fraction form
    359,649,968.60/504,020,139.40 = 359,649,968.60/x
  3. Step 3: Cross multiply
    359,649,968.60x = 504,020,139.40 × 359,649,968.60
  4. Step 4: Simplify right side
    359,649,968.60x = 181,270,827,308,977,632
  5. Step 5: Solve for x
    x = 181,270,827,308,977,632/359,649,968.60
  6. Step 6: Final answer
    x = 504,020,139.40

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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.