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Finding the Fourth Proportional to 458,065.55, 632,132.08 and 254,120.51

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Solution

The fourth proportional to 458,065.55, 632,132.08 and 254,120.51 is: 350,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,065.55 : 632,132.08 = 254,120.51 : x
  2. Step 2: Convert to fraction form
    458,065.55/632,132.08 = 254,120.51/x
  3. Step 3: Cross multiply
    458,065.55x = 632,132.08 × 254,120.51
  4. Step 4: Simplify right side
    458,065.55x = 160,637,727,501.99
  5. Step 5: Solve for x
    x = 160,637,727,501.99/458,065.55
  6. Step 6: Final answer
    x = 350,687.20

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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.