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Finding the Fourth Proportional to 308,220.16, 425,377.20 and 180,914.08

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Solution

The fourth proportional to 308,220.16, 425,377.20 and 180,914.08 is: 249,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,220.16 : 425,377.20 = 180,914.08 : x
  2. Step 2: Convert to fraction form
    308,220.16/425,377.20 = 180,914.08/x
  3. Step 3: Cross multiply
    308,220.16x = 425,377.20 × 180,914.08
  4. Step 4: Simplify right side
    308,220.16x = 76,956,724,790.98
  5. Step 5: Solve for x
    x = 76,956,724,790.98/308,220.16
  6. Step 6: Final answer
    x = 249,681.02

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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.