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Finding the Fourth Proportional to 608,312.42, 913,020.13 and 324,241.57

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Solution

The fourth proportional to 608,312.42, 913,020.13 and 324,241.57 is: 486,656.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,312.42 : 913,020.13 = 324,241.57 : x
  2. Step 2: Convert to fraction form
    608,312.42/913,020.13 = 324,241.57/x
  3. Step 3: Cross multiply
    608,312.42x = 913,020.13 × 324,241.57
  4. Step 4: Simplify right side
    608,312.42x = 296,039,075,827.70
  5. Step 5: Solve for x
    x = 296,039,075,827.70/608,312.42
  6. Step 6: Final answer
    x = 486,656.31

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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.