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Finding the Fourth Proportional to 457,870.80, 631,133.48 and 360,917.45

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Solution

The fourth proportional to 457,870.80, 631,133.48 and 360,917.45 is: 497,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,870.80 : 631,133.48 = 360,917.45 : x
  2. Step 2: Convert to fraction form
    457,870.80/631,133.48 = 360,917.45/x
  3. Step 3: Cross multiply
    457,870.80x = 631,133.48 × 360,917.45
  4. Step 4: Simplify right side
    457,870.80x = 227,787,081,250.97
  5. Step 5: Solve for x
    x = 227,787,081,250.97/457,870.80
  6. Step 6: Final answer
    x = 497,492.05

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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.