Home / 852,403.20-1,277,049.60-519,590.40

Finding the Fourth Proportional to 852,403.20, 1,277,049.60 and 519,590.40

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Solution

The fourth proportional to 852,403.20, 1,277,049.60 and 519,590.40 is: 778,437.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,403.20 : 1,277,049.60 = 519,590.40 : x
  2. Step 2: Convert to fraction form
    852,403.20/1,277,049.60 = 519,590.40/x
  3. Step 3: Cross multiply
    852,403.20x = 1,277,049.60 × 519,590.40
  4. Step 4: Simplify right side
    852,403.20x = 663,542,712,483.84
  5. Step 5: Solve for x
    x = 663,542,712,483.84/852,403.20
  6. Step 6: Final answer
    x = 778,437.61

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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.