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Finding the Fourth Proportional to 723,751.20, 999,750.60 and 556,081.20

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Solution

The fourth proportional to 723,751.20, 999,750.60 and 556,081.20 is: 768,140.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,751.20 : 999,750.60 = 556,081.20 : x
  2. Step 2: Convert to fraction form
    723,751.20/999,750.60 = 556,081.20/x
  3. Step 3: Cross multiply
    723,751.20x = 999,750.60 × 556,081.20
  4. Step 4: Simplify right side
    723,751.20x = 555,942,513,348.72
  5. Step 5: Solve for x
    x = 555,942,513,348.72/723,751.20
  6. Step 6: Final answer
    x = 768,140.37

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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.