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Finding the Fourth Proportional to 553,693,810.70, 830,540,716.05 and 530,104,537.10

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Solution

The fourth proportional to 553,693,810.70, 830,540,716.05 and 530,104,537.10 is: 795,156,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,693,810.70 : 830,540,716.05 = 530,104,537.10 : x
  2. Step 2: Convert to fraction form
    553,693,810.70/830,540,716.05 = 530,104,537.10/x
  3. Step 3: Cross multiply
    553,693,810.70x = 830,540,716.05 × 530,104,537.10
  4. Step 4: Simplify right side
    553,693,810.70x = 440,273,401,824,387,776
  5. Step 5: Solve for x
    x = 440,273,401,824,387,776/553,693,810.70
  6. Step 6: Final answer
    x = 795,156,805.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.