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Finding the Fourth Proportional to 1,303,522,809.29, 1,798,870,834.73 and 708,803,032.02

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Solution

The fourth proportional to 1,303,522,809.29, 1,798,870,834.73 and 708,803,032.02 is: 978,153,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,522,809.29 : 1,798,870,834.73 = 708,803,032.02 : x
  2. Step 2: Convert to fraction form
    1,303,522,809.29/1,798,870,834.73 = 708,803,032.02/x
  3. Step 3: Cross multiply
    1,303,522,809.29x = 1,798,870,834.73 × 708,803,032.02
  4. Step 4: Simplify right side
    1,303,522,809.29x = 1,275,045,101,870,193,152
  5. Step 5: Solve for x
    x = 1,275,045,101,870,193,152/1,303,522,809.29
  6. Step 6: Final answer
    x = 978,153,272.64

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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.