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Finding the Fourth Proportional to 1,199,684.55, 1,799,526.81 and 400,966.09

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Solution

The fourth proportional to 1,199,684.55, 1,799,526.81 and 400,966.09 is: 601,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,684.55 : 1,799,526.81 = 400,966.09 : x
  2. Step 2: Convert to fraction form
    1,199,684.55/1,799,526.81 = 400,966.09/x
  3. Step 3: Cross multiply
    1,199,684.55x = 1,799,526.81 × 400,966.09
  4. Step 4: Simplify right side
    1,199,684.55x = 721,549,226,979.36
  5. Step 5: Solve for x
    x = 721,549,226,979.36/1,199,684.55
  6. Step 6: Final answer
    x = 601,449.13

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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.