Home / 938,419.04-1,405,355.45-649,420.86

Finding the Fourth Proportional to 938,419.04, 1,405,355.45 and 649,420.86

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Solution

The fourth proportional to 938,419.04, 1,405,355.45 and 649,420.86 is: 972,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,419.04 : 1,405,355.45 = 649,420.86 : x
  2. Step 2: Convert to fraction form
    938,419.04/1,405,355.45 = 649,420.86/x
  3. Step 3: Cross multiply
    938,419.04x = 1,405,355.45 × 649,420.86
  4. Step 4: Simplify right side
    938,419.04x = 912,667,141,697.58
  5. Step 5: Solve for x
    x = 912,667,141,697.58/938,419.04
  6. Step 6: Final answer
    x = 972,558.22

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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.