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Finding the Fourth Proportional to 445,075.76, 614,204.92 and 243,871.76

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Solution

The fourth proportional to 445,075.76, 614,204.92 and 243,871.76 is: 336,543.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,075.76 : 614,204.92 = 243,871.76 : x
  2. Step 2: Convert to fraction form
    445,075.76/614,204.92 = 243,871.76/x
  3. Step 3: Cross multiply
    445,075.76x = 614,204.92 × 243,871.76
  4. Step 4: Simplify right side
    445,075.76x = 149,787,234,841.06
  5. Step 5: Solve for x
    x = 149,787,234,841.06/445,075.76
  6. Step 6: Final answer
    x = 336,543.23

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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.