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Finding the Fourth Proportional to 884,100.40, 1,326,009.80 and 293,124.40

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Solution

The fourth proportional to 884,100.40, 1,326,009.80 and 293,124.40 is: 439,639.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,100.40 : 1,326,009.80 = 293,124.40 : x
  2. Step 2: Convert to fraction form
    884,100.40/1,326,009.80 = 293,124.40/x
  3. Step 3: Cross multiply
    884,100.40x = 1,326,009.80 × 293,124.40
  4. Step 4: Simplify right side
    884,100.40x = 388,685,827,019.12
  5. Step 5: Solve for x
    x = 388,685,827,019.12/884,100.40
  6. Step 6: Final answer
    x = 439,639.92

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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.