Home / 919,078.80-1,378,618.20-706,502.40

Finding the Fourth Proportional to 919,078.80, 1,378,618.20 and 706,502.40

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Solution

The fourth proportional to 919,078.80, 1,378,618.20 and 706,502.40 is: 1,059,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,078.80 : 1,378,618.20 = 706,502.40 : x
  2. Step 2: Convert to fraction form
    919,078.80/1,378,618.20 = 706,502.40/x
  3. Step 3: Cross multiply
    919,078.80x = 1,378,618.20 × 706,502.40
  4. Step 4: Simplify right side
    919,078.80x = 973,997,066,983.68
  5. Step 5: Solve for x
    x = 973,997,066,983.68/919,078.80
  6. Step 6: Final answer
    x = 1,059,753.60

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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.