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Finding the Fourth Proportional to 625,696,415.72, 864,177,681.77 and 412,070,019.93

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Solution

The fourth proportional to 625,696,415.72, 864,177,681.77 and 412,070,019.93 is: 569,128,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,696,415.72 : 864,177,681.77 = 412,070,019.93 : x
  2. Step 2: Convert to fraction form
    625,696,415.72/864,177,681.77 = 412,070,019.93/x
  3. Step 3: Cross multiply
    625,696,415.72x = 864,177,681.77 × 412,070,019.93
  4. Step 4: Simplify right side
    625,696,415.72x = 356,101,714,551,055,296
  5. Step 5: Solve for x
    x = 356,101,714,551,055,296/625,696,415.72
  6. Step 6: Final answer
    x = 569,128,583.14

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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.