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Finding the Fourth Proportional to 562,353.18, 776,047.28 and 307,704.30

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Solution

The fourth proportional to 562,353.18, 776,047.28 and 307,704.30 is: 424,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,353.18 : 776,047.28 = 307,704.30 : x
  2. Step 2: Convert to fraction form
    562,353.18/776,047.28 = 307,704.30/x
  3. Step 3: Cross multiply
    562,353.18x = 776,047.28 × 307,704.30
  4. Step 4: Simplify right side
    562,353.18x = 238,793,085,059.30
  5. Step 5: Solve for x
    x = 238,793,085,059.30/562,353.18
  6. Step 6: Final answer
    x = 424,631.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.