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Finding the Fourth Proportional to 765,297,355.40, 1,073,457,031 and 765,297,355.40

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Solution

The fourth proportional to 765,297,355.40, 1,073,457,031 and 765,297,355.40 is: 1,073,457,031

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,297,355.40 : 1,073,457,031 = 765,297,355.40 : x
  2. Step 2: Convert to fraction form
    765,297,355.40/1,073,457,031 = 765,297,355.40/x
  3. Step 3: Cross multiply
    765,297,355.40x = 1,073,457,031 × 765,297,355.40
  4. Step 4: Simplify right side
    765,297,355.40x = 821,513,826,959,835,776
  5. Step 5: Solve for x
    x = 821,513,826,959,835,776/765,297,355.40
  6. Step 6: Final answer
    x = 1,073,457,031

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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.