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Finding the Fourth Proportional to 492,069.80, 736,136.40 and 426,241.10

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Solution

The fourth proportional to 492,069.80, 736,136.40 and 426,241.10 is: 637,656.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,069.80 : 736,136.40 = 426,241.10 : x
  2. Step 2: Convert to fraction form
    492,069.80/736,136.40 = 426,241.10/x
  3. Step 3: Cross multiply
    492,069.80x = 736,136.40 × 426,241.10
  4. Step 4: Simplify right side
    492,069.80x = 313,771,588,886.04
  5. Step 5: Solve for x
    x = 313,771,588,886.04/492,069.80
  6. Step 6: Final answer
    x = 637,656.67

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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.