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Finding the Fourth Proportional to 362,187.70, 543,281.55 and 268,875.70

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Solution

The fourth proportional to 362,187.70, 543,281.55 and 268,875.70 is: 403,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,187.70 : 543,281.55 = 268,875.70 : x
  2. Step 2: Convert to fraction form
    362,187.70/543,281.55 = 268,875.70/x
  3. Step 3: Cross multiply
    362,187.70x = 543,281.55 × 268,875.70
  4. Step 4: Simplify right side
    362,187.70x = 146,075,207,053.34
  5. Step 5: Solve for x
    x = 146,075,207,053.34/362,187.70
  6. Step 6: Final answer
    x = 403,313.55

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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.