Home / 814,243.20-1,221,364.80-578,047.20

Finding the Fourth Proportional to 814,243.20, 1,221,364.80 and 578,047.20

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Solution

The fourth proportional to 814,243.20, 1,221,364.80 and 578,047.20 is: 867,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,243.20 : 1,221,364.80 = 578,047.20 : x
  2. Step 2: Convert to fraction form
    814,243.20/1,221,364.80 = 578,047.20/x
  3. Step 3: Cross multiply
    814,243.20x = 1,221,364.80 × 578,047.20
  4. Step 4: Simplify right side
    814,243.20x = 706,006,502,818.56
  5. Step 5: Solve for x
    x = 706,006,502,818.56/814,243.20
  6. Step 6: Final answer
    x = 867,070.80

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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.