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Finding the Fourth Proportional to 462,931, 638,848.62 and 250,963

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Solution

The fourth proportional to 462,931, 638,848.62 and 250,963 is: 346,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,931 : 638,848.62 = 250,963 : x
  2. Step 2: Convert to fraction form
    462,931/638,848.62 = 250,963/x
  3. Step 3: Cross multiply
    462,931x = 638,848.62 × 250,963
  4. Step 4: Simplify right side
    462,931x = 160,327,366,221.06
  5. Step 5: Solve for x
    x = 160,327,366,221.06/462,931
  6. Step 6: Final answer
    x = 346,331.02

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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.