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Finding the Fourth Proportional to 561,323.22, 774,406.20 and 346,089.63

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Solution

The fourth proportional to 561,323.22, 774,406.20 and 346,089.63 is: 477,468.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,323.22 : 774,406.20 = 346,089.63 : x
  2. Step 2: Convert to fraction form
    561,323.22/774,406.20 = 346,089.63/x
  3. Step 3: Cross multiply
    561,323.22x = 774,406.20 × 346,089.63
  4. Step 4: Simplify right side
    561,323.22x = 268,013,955,227.71
  5. Step 5: Solve for x
    x = 268,013,955,227.71/561,323.22
  6. Step 6: Final answer
    x = 477,468.14

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Double scale
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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.