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Finding the Fourth Proportional to 552,908,817.56, 763,009,009.84 and 302,013,113.30

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Solution

The fourth proportional to 552,908,817.56, 763,009,009.84 and 302,013,113.30 is: 416,775,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,908,817.56 : 763,009,009.84 = 302,013,113.30 : x
  2. Step 2: Convert to fraction form
    552,908,817.56/763,009,009.84 = 302,013,113.30/x
  3. Step 3: Cross multiply
    552,908,817.56x = 763,009,009.84 × 302,013,113.30
  4. Step 4: Simplify right side
    552,908,817.56x = 230,438,726,533,158,656
  5. Step 5: Solve for x
    x = 230,438,726,533,158,656/552,908,817.56
  6. Step 6: Final answer
    x = 416,775,278.70

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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.