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Finding the Fourth Proportional to 553,508.28, 830,578.14 and 216,576.36

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Solution

The fourth proportional to 553,508.28, 830,578.14 and 216,576.36 is: 324,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,508.28 : 830,578.14 = 216,576.36 : x
  2. Step 2: Convert to fraction form
    553,508.28/830,578.14 = 216,576.36/x
  3. Step 3: Cross multiply
    553,508.28x = 830,578.14 × 216,576.36
  4. Step 4: Simplify right side
    553,508.28x = 179,883,590,256.77
  5. Step 5: Solve for x
    x = 179,883,590,256.77/553,508.28
  6. Step 6: Final answer
    x = 324,988.07

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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.