Home / 879,898.40-1,214,259.80-477,490.40

Finding the Fourth Proportional to 879,898.40, 1,214,259.80 and 477,490.40

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Solution

The fourth proportional to 879,898.40, 1,214,259.80 and 477,490.40 is: 658,936.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,898.40 : 1,214,259.80 = 477,490.40 : x
  2. Step 2: Convert to fraction form
    879,898.40/1,214,259.80 = 477,490.40/x
  3. Step 3: Cross multiply
    879,898.40x = 1,214,259.80 × 477,490.40
  4. Step 4: Simplify right side
    879,898.40x = 579,797,397,605.92
  5. Step 5: Solve for x
    x = 579,797,397,605.92/879,898.40
  6. Step 6: Final answer
    x = 658,936.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.