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Finding the Fourth Proportional to 882,665.74, 1,218,042.85 and 500,684.32

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Solution

The fourth proportional to 882,665.74, 1,218,042.85 and 500,684.32 is: 690,924.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,665.74 : 1,218,042.85 = 500,684.32 : x
  2. Step 2: Convert to fraction form
    882,665.74/1,218,042.85 = 500,684.32/x
  3. Step 3: Cross multiply
    882,665.74x = 1,218,042.85 × 500,684.32
  4. Step 4: Simplify right side
    882,665.74x = 609,854,947,489.48
  5. Step 5: Solve for x
    x = 609,854,947,489.48/882,665.74
  6. Step 6: Final answer
    x = 690,924.01

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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.