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Finding the Fourth Proportional to 1,235,522,583, 1,705,054,460.67 and 726,920,798.49

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Solution

The fourth proportional to 1,235,522,583, 1,705,054,460.67 and 726,920,798.49 is: 1,003,170,291.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,522,583 : 1,705,054,460.67 = 726,920,798.49 : x
  2. Step 2: Convert to fraction form
    1,235,522,583/1,705,054,460.67 = 726,920,798.49/x
  3. Step 3: Cross multiply
    1,235,522,583x = 1,705,054,460.67 × 726,920,798.49
  4. Step 4: Simplify right side
    1,235,522,583x = 1,239,439,550,019,172,864
  5. Step 5: Solve for x
    x = 1,239,439,550,019,172,864/1,235,522,583
  6. Step 6: Final answer
    x = 1,003,170,291.72

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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.