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Finding the Fourth Proportional to 608,509.80, 912,894.30 and 187,828.20

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Solution

The fourth proportional to 608,509.80, 912,894.30 and 187,828.20 is: 281,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,509.80 : 912,894.30 = 187,828.20 : x
  2. Step 2: Convert to fraction form
    608,509.80/912,894.30 = 187,828.20/x
  3. Step 3: Cross multiply
    608,509.80x = 912,894.30 × 187,828.20
  4. Step 4: Simplify right side
    608,509.80x = 171,467,293,159.26
  5. Step 5: Solve for x
    x = 171,467,293,159.26/608,509.80
  6. Step 6: Final answer
    x = 281,782.30

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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.