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Finding the Fourth Proportional to 313,332.80, 432,511.58 and 186,008.49

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Solution

The fourth proportional to 313,332.80, 432,511.58 and 186,008.49 is: 256,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,332.80 : 432,511.58 = 186,008.49 : x
  2. Step 2: Convert to fraction form
    313,332.80/432,511.58 = 186,008.49/x
  3. Step 3: Cross multiply
    313,332.80x = 432,511.58 × 186,008.49
  4. Step 4: Simplify right side
    313,332.80x = 80,450,826,368.34
  5. Step 5: Solve for x
    x = 80,450,826,368.34/313,332.80
  6. Step 6: Final answer
    x = 256,758.40

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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.