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Finding the Fourth Proportional to 962,920.50, 1,328,814 and 533,191.40

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Solution

The fourth proportional to 962,920.50, 1,328,814 and 533,191.40 is: 735,795.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    962,920.50 : 1,328,814 = 533,191.40 : x
  2. Step 2: Convert to fraction form
    962,920.50/1,328,814 = 533,191.40/x
  3. Step 3: Cross multiply
    962,920.50x = 1,328,814 × 533,191.40
  4. Step 4: Simplify right side
    962,920.50x = 708,512,196,999.60
  5. Step 5: Solve for x
    x = 708,512,196,999.60/962,920.50
  6. Step 6: Final answer
    x = 735,795.11

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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.