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Finding the Fourth Proportional to 317,860.59, 439,036.16 and 237,644.67

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Solution

The fourth proportional to 317,860.59, 439,036.16 and 237,644.67 is: 328,240.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,860.59 : 439,036.16 = 237,644.67 : x
  2. Step 2: Convert to fraction form
    317,860.59/439,036.16 = 237,644.67/x
  3. Step 3: Cross multiply
    317,860.59x = 439,036.16 × 237,644.67
  4. Step 4: Simplify right side
    317,860.59x = 104,334,602,173.04
  5. Step 5: Solve for x
    x = 104,334,602,173.04/317,860.59
  6. Step 6: Final answer
    x = 328,240.13

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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.