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Finding the Fourth Proportional to 648,611.47, 968,658.76 and 552,820.87

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Solution

The fourth proportional to 648,611.47, 968,658.76 and 552,820.87 is: 825,601.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,611.47 : 968,658.76 = 552,820.87 : x
  2. Step 2: Convert to fraction form
    648,611.47/968,658.76 = 552,820.87/x
  3. Step 3: Cross multiply
    648,611.47x = 968,658.76 × 552,820.87
  4. Step 4: Simplify right side
    648,611.47x = 535,494,778,436.32
  5. Step 5: Solve for x
    x = 535,494,778,436.32/648,611.47
  6. Step 6: Final answer
    x = 825,601.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.