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Finding the Fourth Proportional to 456,889.13, 630,419.51 and 295,721.81

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Solution

The fourth proportional to 456,889.13, 630,419.51 and 295,721.81 is: 408,039.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,889.13 : 630,419.51 = 295,721.81 : x
  2. Step 2: Convert to fraction form
    456,889.13/630,419.51 = 295,721.81/x
  3. Step 3: Cross multiply
    456,889.13x = 630,419.51 × 295,721.81
  4. Step 4: Simplify right side
    456,889.13x = 186,428,793,925.81
  5. Step 5: Solve for x
    x = 186,428,793,925.81/456,889.13
  6. Step 6: Final answer
    x = 408,039.46

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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.