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Finding the Fourth Proportional to 585,673.75, 808,230.32 and 317,401.75

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Solution

The fourth proportional to 585,673.75, 808,230.32 and 317,401.75 is: 438,014.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,673.75 : 808,230.32 = 317,401.75 : x
  2. Step 2: Convert to fraction form
    585,673.75/808,230.32 = 317,401.75/x
  3. Step 3: Cross multiply
    585,673.75x = 808,230.32 × 317,401.75
  4. Step 4: Simplify right side
    585,673.75x = 256,533,717,971.06
  5. Step 5: Solve for x
    x = 256,533,717,971.06/585,673.75
  6. Step 6: Final answer
    x = 438,014.71

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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.