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Finding the Fourth Proportional to 561,904.56, 775,211.58 and 346,671.36

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Solution

The fourth proportional to 561,904.56, 775,211.58 and 346,671.36 is: 478,272.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,904.56 : 775,211.58 = 346,671.36 : x
  2. Step 2: Convert to fraction form
    561,904.56/775,211.58 = 346,671.36/x
  3. Step 3: Cross multiply
    561,904.56x = 775,211.58 × 346,671.36
  4. Step 4: Simplify right side
    561,904.56x = 268,743,652,726.35
  5. Step 5: Solve for x
    x = 268,743,652,726.35/561,904.56
  6. Step 6: Final answer
    x = 478,272.77

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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.