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Finding the Fourth Proportional to 553,673.73, 830,510.87 and 154,324.83

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Solution

The fourth proportional to 553,673.73, 830,510.87 and 154,324.83 is: 231,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,673.73 : 830,510.87 = 154,324.83 : x
  2. Step 2: Convert to fraction form
    553,673.73/830,510.87 = 154,324.83/x
  3. Step 3: Cross multiply
    553,673.73x = 830,510.87 × 154,324.83
  4. Step 4: Simplify right side
    553,673.73x = 128,168,448,054.28
  5. Step 5: Solve for x
    x = 128,168,448,054.28/553,673.73
  6. Step 6: Final answer
    x = 231,487.32

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Similar ratio
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1.5x scale

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.