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Finding the Fourth Proportional to 468,677.32, 646,771.28 and 253,812.40

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Solution

The fourth proportional to 468,677.32, 646,771.28 and 253,812.40 is: 350,259.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,677.32 : 646,771.28 = 253,812.40 : x
  2. Step 2: Convert to fraction form
    468,677.32/646,771.28 = 253,812.40/x
  3. Step 3: Cross multiply
    468,677.32x = 646,771.28 × 253,812.40
  4. Step 4: Simplify right side
    468,677.32x = 164,158,570,827.87
  5. Step 5: Solve for x
    x = 164,158,570,827.87/468,677.32
  6. Step 6: Final answer
    x = 350,259.26

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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.