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Finding the Fourth Proportional to 424,161.40, 585,338.59 and 315,750.54

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Solution

The fourth proportional to 424,161.40, 585,338.59 and 315,750.54 is: 435,732.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,161.40 : 585,338.59 = 315,750.54 : x
  2. Step 2: Convert to fraction form
    424,161.40/585,338.59 = 315,750.54/x
  3. Step 3: Cross multiply
    424,161.40x = 585,338.59 × 315,750.54
  4. Step 4: Simplify right side
    424,161.40x = 184,820,975,875.34
  5. Step 5: Solve for x
    x = 184,820,975,875.34/424,161.40
  6. Step 6: Final answer
    x = 435,732.66

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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.