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Finding the Fourth Proportional to 456,313.28, 684,417.60 and 119,386.46

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Solution

The fourth proportional to 456,313.28, 684,417.60 and 119,386.46 is: 179,066.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,313.28 : 684,417.60 = 119,386.46 : x
  2. Step 2: Convert to fraction form
    456,313.28/684,417.60 = 119,386.46/x
  3. Step 3: Cross multiply
    456,313.28x = 684,417.60 × 119,386.46
  4. Step 4: Simplify right side
    456,313.28x = 81,710,194,425.70
  5. Step 5: Solve for x
    x = 81,710,194,425.70/456,313.28
  6. Step 6: Final answer
    x = 179,066.00

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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.