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Finding the Fourth Proportional to 458,426.90, 632,597.45 and 254,461.79

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Solution

The fourth proportional to 458,426.90, 632,597.45 and 254,461.79 is: 351,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,426.90 : 632,597.45 = 254,461.79 : x
  2. Step 2: Convert to fraction form
    458,426.90/632,597.45 = 254,461.79/x
  3. Step 3: Cross multiply
    458,426.90x = 632,597.45 × 254,461.79
  4. Step 4: Simplify right side
    458,426.90x = 160,971,875,041.14
  5. Step 5: Solve for x
    x = 160,971,875,041.14/458,426.90
  6. Step 6: Final answer
    x = 351,139.68

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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.