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Finding the Fourth Proportional to 553,856.19, 830,710.44 and 154,463.52

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Solution

The fourth proportional to 553,856.19, 830,710.44 and 154,463.52 is: 231,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,856.19 : 830,710.44 = 154,463.52 : x
  2. Step 2: Convert to fraction form
    553,856.19/830,710.44 = 154,463.52/x
  3. Step 3: Cross multiply
    553,856.19x = 830,710.44 × 154,463.52
  4. Step 4: Simplify right side
    553,856.19x = 128,314,458,663.15
  5. Step 5: Solve for x
    x = 128,314,458,663.15/553,856.19
  6. Step 6: Final answer
    x = 231,674.69

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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.