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Finding the Fourth Proportional to 587,751.23, 811,185.36 and 358,441.55

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Solution

The fourth proportional to 587,751.23, 811,185.36 and 358,441.55 is: 494,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,751.23 : 811,185.36 = 358,441.55 : x
  2. Step 2: Convert to fraction form
    587,751.23/811,185.36 = 358,441.55/x
  3. Step 3: Cross multiply
    587,751.23x = 811,185.36 × 358,441.55
  4. Step 4: Simplify right side
    587,751.23x = 290,762,533,719.78
  5. Step 5: Solve for x
    x = 290,762,533,719.78/587,751.23
  6. Step 6: Final answer
    x = 494,703.41

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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.