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Finding the Fourth Proportional to 605,842,021.40, 908,763,032.10 and 605,842,021.40

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Solution

The fourth proportional to 605,842,021.40, 908,763,032.10 and 605,842,021.40 is: 908,763,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,842,021.40 : 908,763,032.10 = 605,842,021.40 : x
  2. Step 2: Convert to fraction form
    605,842,021.40/908,763,032.10 = 605,842,021.40/x
  3. Step 3: Cross multiply
    605,842,021.40x = 908,763,032.10 × 605,842,021.40
  4. Step 4: Simplify right side
    605,842,021.40x = 550,566,832,341,057,088
  5. Step 5: Solve for x
    x = 550,566,832,341,057,088/605,842,021.40
  6. Step 6: Final answer
    x = 908,763,032.10

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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.