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Finding the Fourth Proportional to 675,358.80, 1,013,038.20 and 517,894.80

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Solution

The fourth proportional to 675,358.80, 1,013,038.20 and 517,894.80 is: 776,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,358.80 : 1,013,038.20 = 517,894.80 : x
  2. Step 2: Convert to fraction form
    675,358.80/1,013,038.20 = 517,894.80/x
  3. Step 3: Cross multiply
    675,358.80x = 1,013,038.20 × 517,894.80
  4. Step 4: Simplify right side
    675,358.80x = 524,647,215,981.36
  5. Step 5: Solve for x
    x = 524,647,215,981.36/675,358.80
  6. Step 6: Final answer
    x = 776,842.20

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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.