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Finding the Fourth Proportional to 887,880.60, 1,225,201.14 and 500,674.32

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Solution

The fourth proportional to 887,880.60, 1,225,201.14 and 500,674.32 is: 690,888.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,880.60 : 1,225,201.14 = 500,674.32 : x
  2. Step 2: Convert to fraction form
    887,880.60/1,225,201.14 = 500,674.32/x
  3. Step 3: Cross multiply
    887,880.60x = 1,225,201.14 × 500,674.32
  4. Step 4: Simplify right side
    887,880.60x = 613,426,747,632.73
  5. Step 5: Solve for x
    x = 613,426,747,632.73/887,880.60
  6. Step 6: Final answer
    x = 690,888.78

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Double scale
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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.