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Finding the Fourth Proportional to 885,775,865.60, 1,328,663,798.40 and 368,034,233.60

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Solution

The fourth proportional to 885,775,865.60, 1,328,663,798.40 and 368,034,233.60 is: 552,051,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,775,865.60 : 1,328,663,798.40 = 368,034,233.60 : x
  2. Step 2: Convert to fraction form
    885,775,865.60/1,328,663,798.40 = 368,034,233.60/x
  3. Step 3: Cross multiply
    885,775,865.60x = 1,328,663,798.40 × 368,034,233.60
  4. Step 4: Simplify right side
    885,775,865.60x = 488,993,762,756,208,960
  5. Step 5: Solve for x
    x = 488,993,762,756,208,960/885,775,865.60
  6. Step 6: Final answer
    x = 552,051,350.40

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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.