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Finding the Fourth Proportional to 282,323.66, 389,609.45 and 153,263.13

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Solution

The fourth proportional to 282,323.66, 389,609.45 and 153,263.13 is: 211,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,323.66 : 389,609.45 = 153,263.13 : x
  2. Step 2: Convert to fraction form
    282,323.66/389,609.45 = 153,263.13/x
  3. Step 3: Cross multiply
    282,323.66x = 389,609.45 × 153,263.13
  4. Step 4: Simplify right side
    282,323.66x = 59,712,763,018.26
  5. Step 5: Solve for x
    x = 59,712,763,018.26/282,323.66
  6. Step 6: Final answer
    x = 211,504.64

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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.