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Finding the Fourth Proportional to 561,315.02, 774,394.83 and 346,081.41

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Solution

The fourth proportional to 561,315.02, 774,394.83 and 346,081.41 is: 477,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,315.02 : 774,394.83 = 346,081.41 : x
  2. Step 2: Convert to fraction form
    561,315.02/774,394.83 = 346,081.41/x
  3. Step 3: Cross multiply
    561,315.02x = 774,394.83 × 346,081.41
  4. Step 4: Simplify right side
    561,315.02x = 268,003,654,663.11
  5. Step 5: Solve for x
    x = 268,003,654,663.11/561,315.02
  6. Step 6: Final answer
    x = 477,456.77

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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.