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Finding the Fourth Proportional to 609,294.81, 840,855.72 and 367,572.20

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Solution

The fourth proportional to 609,294.81, 840,855.72 and 367,572.20 is: 507,267.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,294.81 : 840,855.72 = 367,572.20 : x
  2. Step 2: Convert to fraction form
    609,294.81/840,855.72 = 367,572.20/x
  3. Step 3: Cross multiply
    609,294.81x = 840,855.72 × 367,572.20
  4. Step 4: Simplify right side
    609,294.81x = 309,075,186,882.98
  5. Step 5: Solve for x
    x = 309,075,186,882.98/609,294.81
  6. Step 6: Final answer
    x = 507,267.06

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1.5x scale

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.