Home / 936,000.20-1,404,000.30-579,859.40

Finding the Fourth Proportional to 936,000.20, 1,404,000.30 and 579,859.40

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Solution

The fourth proportional to 936,000.20, 1,404,000.30 and 579,859.40 is: 869,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,000.20 : 1,404,000.30 = 579,859.40 : x
  2. Step 2: Convert to fraction form
    936,000.20/1,404,000.30 = 579,859.40/x
  3. Step 3: Cross multiply
    936,000.20x = 1,404,000.30 × 579,859.40
  4. Step 4: Simplify right side
    936,000.20x = 814,122,771,557.82
  5. Step 5: Solve for x
    x = 814,122,771,557.82/936,000.20
  6. Step 6: Final answer
    x = 869,789.10

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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.