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Finding the Fourth Proportional to 477,323.40, 715,968.90 and 122,340.90

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Solution

The fourth proportional to 477,323.40, 715,968.90 and 122,340.90 is: 183,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,323.40 : 715,968.90 = 122,340.90 : x
  2. Step 2: Convert to fraction form
    477,323.40/715,968.90 = 122,340.90/x
  3. Step 3: Cross multiply
    477,323.40x = 715,968.90 × 122,340.90
  4. Step 4: Simplify right side
    477,323.40x = 87,592,279,598.01
  5. Step 5: Solve for x
    x = 87,592,279,598.01/477,323.40
  6. Step 6: Final answer
    x = 183,507.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.