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Finding the Fourth Proportional to 683,648.61, 942,634.86 and 465,986.16

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Solution

The fourth proportional to 683,648.61, 942,634.86 and 465,986.16 is: 642,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,648.61 : 942,634.86 = 465,986.16 : x
  2. Step 2: Convert to fraction form
    683,648.61/942,634.86 = 465,986.16/x
  3. Step 3: Cross multiply
    683,648.61x = 942,634.86 × 465,986.16
  4. Step 4: Simplify right side
    683,648.61x = 439,254,798,693.54
  5. Step 5: Solve for x
    x = 439,254,798,693.54/683,648.61
  6. Step 6: Final answer
    x = 642,515.46

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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.