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Finding the Fourth Proportional to 561,321.72, 774,404.13 and 346,088.13

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Solution

The fourth proportional to 561,321.72, 774,404.13 and 346,088.13 is: 477,466.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,321.72 : 774,404.13 = 346,088.13 : x
  2. Step 2: Convert to fraction form
    561,321.72/774,404.13 = 346,088.13/x
  3. Step 3: Cross multiply
    561,321.72x = 774,404.13 × 346,088.13
  4. Step 4: Simplify right side
    561,321.72x = 268,012,077,215.98
  5. Step 5: Solve for x
    x = 268,012,077,215.98/561,321.72
  6. Step 6: Final answer
    x = 477,466.07

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Similar ratio
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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.