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Finding the Fourth Proportional to 612,106,266.30, 858,762,758.10 and 612,106,266.30

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Solution

The fourth proportional to 612,106,266.30, 858,762,758.10 and 612,106,266.30 is: 858,762,758.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,106,266.30 : 858,762,758.10 = 612,106,266.30 : x
  2. Step 2: Convert to fraction form
    612,106,266.30/858,762,758.10 = 612,106,266.30/x
  3. Step 3: Cross multiply
    612,106,266.30x = 858,762,758.10 × 612,106,266.30
  4. Step 4: Simplify right side
    612,106,266.30x = 525,654,065,498,081,024
  5. Step 5: Solve for x
    x = 525,654,065,498,081,024/612,106,266.30
  6. Step 6: Final answer
    x = 858,762,758.10

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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.