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Finding the Fourth Proportional to 893,089.74, 1,232,458.74 and 485,188.32

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Solution

The fourth proportional to 893,089.74, 1,232,458.74 and 485,188.32 is: 669,557.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,089.74 : 1,232,458.74 = 485,188.32 : x
  2. Step 2: Convert to fraction form
    893,089.74/1,232,458.74 = 485,188.32/x
  3. Step 3: Cross multiply
    893,089.74x = 1,232,458.74 × 485,188.32
  4. Step 4: Simplify right side
    893,089.74x = 597,974,585,529.92
  5. Step 5: Solve for x
    x = 597,974,585,529.92/893,089.74
  6. Step 6: Final answer
    x = 669,557.11

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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.