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Finding the Fourth Proportional to 468,829.42, 646,987.70 and 253,969.32

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Solution

The fourth proportional to 468,829.42, 646,987.70 and 253,969.32 is: 350,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,829.42 : 646,987.70 = 253,969.32 : x
  2. Step 2: Convert to fraction form
    468,829.42/646,987.70 = 253,969.32/x
  3. Step 3: Cross multiply
    468,829.42x = 646,987.70 × 253,969.32
  4. Step 4: Simplify right side
    468,829.42x = 164,315,029,278.49
  5. Step 5: Solve for x
    x = 164,315,029,278.49/468,829.42
  6. Step 6: Final answer
    x = 350,479.35

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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.