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Finding the Fourth Proportional to 540,010.20, 807,941.70 and 353,386.20

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Solution

The fourth proportional to 540,010.20, 807,941.70 and 353,386.20 is: 528,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,010.20 : 807,941.70 = 353,386.20 : x
  2. Step 2: Convert to fraction form
    540,010.20/807,941.70 = 353,386.20/x
  3. Step 3: Cross multiply
    540,010.20x = 807,941.70 × 353,386.20
  4. Step 4: Simplify right side
    540,010.20x = 285,515,447,184.54
  5. Step 5: Solve for x
    x = 285,515,447,184.54/540,010.20
  6. Step 6: Final answer
    x = 528,722.32

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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.