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Finding the Fourth Proportional to 604,878.75, 907,318.13 and 210,894.75

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Solution

The fourth proportional to 604,878.75, 907,318.13 and 210,894.75 is: 316,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,878.75 : 907,318.13 = 210,894.75 : x
  2. Step 2: Convert to fraction form
    604,878.75/907,318.13 = 210,894.75/x
  3. Step 3: Cross multiply
    604,878.75x = 907,318.13 × 210,894.75
  4. Step 4: Simplify right side
    604,878.75x = 191,348,630,196.82
  5. Step 5: Solve for x
    x = 191,348,630,196.82/604,878.75
  6. Step 6: Final answer
    x = 316,342.13

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.