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Finding the Fourth Proportional to 561,346.52, 774,438.28 and 346,112.92

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Solution

The fourth proportional to 561,346.52, 774,438.28 and 346,112.92 is: 477,500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,346.52 : 774,438.28 = 346,112.92 : x
  2. Step 2: Convert to fraction form
    561,346.52/774,438.28 = 346,112.92/x
  3. Step 3: Cross multiply
    561,346.52x = 774,438.28 × 346,112.92
  4. Step 4: Simplify right side
    561,346.52x = 268,043,094,450.58
  5. Step 5: Solve for x
    x = 268,043,094,450.58/561,346.52
  6. Step 6: Final answer
    x = 477,500.23

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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.