Home / 989,193.02-1,483,787.18-649,778.90

Finding the Fourth Proportional to 989,193.02, 1,483,787.18 and 649,778.90

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Solution

The fourth proportional to 989,193.02, 1,483,787.18 and 649,778.90 is: 974,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,193.02 : 1,483,787.18 = 649,778.90 : x
  2. Step 2: Convert to fraction form
    989,193.02/1,483,787.18 = 649,778.90/x
  3. Step 3: Cross multiply
    989,193.02x = 1,483,787.18 × 649,778.90
  4. Step 4: Simplify right side
    989,193.02x = 964,133,601,654.50
  5. Step 5: Solve for x
    x = 964,133,601,654.50/989,193.02
  6. Step 6: Final answer
    x = 974,666.81

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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.