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Finding the Fourth Proportional to 963,934.60, 1,445,901.90 and 739,985.80

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Solution

The fourth proportional to 963,934.60, 1,445,901.90 and 739,985.80 is: 1,109,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,934.60 : 1,445,901.90 = 739,985.80 : x
  2. Step 2: Convert to fraction form
    963,934.60/1,445,901.90 = 739,985.80/x
  3. Step 3: Cross multiply
    963,934.60x = 1,445,901.90 × 739,985.80
  4. Step 4: Simplify right side
    963,934.60x = 1,069,946,874,193.02
  5. Step 5: Solve for x
    x = 1,069,946,874,193.02/963,934.60
  6. Step 6: Final answer
    x = 1,109,978.70

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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.