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Finding the Fourth Proportional to 648,607.64, 895,019.64 and 362,075

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Solution

The fourth proportional to 648,607.64, 895,019.64 and 362,075 is: 499,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,607.64 : 895,019.64 = 362,075 : x
  2. Step 2: Convert to fraction form
    648,607.64/895,019.64 = 362,075/x
  3. Step 3: Cross multiply
    648,607.64x = 895,019.64 × 362,075
  4. Step 4: Simplify right side
    648,607.64x = 324,064,236,153
  5. Step 5: Solve for x
    x = 324,064,236,153/648,607.64
  6. Step 6: Final answer
    x = 499,630.62

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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.