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Finding the Fourth Proportional to 626,108, 939,309.44 and 498,506.90

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Solution

The fourth proportional to 626,108, 939,309.44 and 498,506.90 is: 747,877.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,108 : 939,309.44 = 498,506.90 : x
  2. Step 2: Convert to fraction form
    626,108/939,309.44 = 498,506.90/x
  3. Step 3: Cross multiply
    626,108x = 939,309.44 × 498,506.90
  4. Step 4: Simplify right side
    626,108x = 468,252,237,075.14
  5. Step 5: Solve for x
    x = 468,252,237,075.14/626,108
  6. Step 6: Final answer
    x = 747,877.74

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1.5x scale

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.