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Finding the Fourth Proportional to 1,370,248,393, 1,890,944,860.26 and 743,717,050.12

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Solution

The fourth proportional to 1,370,248,393, 1,890,944,860.26 and 743,717,050.12 is: 1,026,330,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,248,393 : 1,890,944,860.26 = 743,717,050.12 : x
  2. Step 2: Convert to fraction form
    1,370,248,393/1,890,944,860.26 = 743,717,050.12/x
  3. Step 3: Cross multiply
    1,370,248,393x = 1,890,944,860.26 × 743,717,050.12
  4. Step 4: Simplify right side
    1,370,248,393x = 1,406,327,933,412,142,848
  5. Step 5: Solve for x
    x = 1,406,327,933,412,142,848/1,370,248,393
  6. Step 6: Final answer
    x = 1,026,330,656.98

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1.5x scale

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.