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Finding the Fourth Proportional to 620,904.40, 931,356.60 and 246,927.40

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Solution

The fourth proportional to 620,904.40, 931,356.60 and 246,927.40 is: 370,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,904.40 : 931,356.60 = 246,927.40 : x
  2. Step 2: Convert to fraction form
    620,904.40/931,356.60 = 246,927.40/x
  3. Step 3: Cross multiply
    620,904.40x = 931,356.60 × 246,927.40
  4. Step 4: Simplify right side
    620,904.40x = 229,977,463,710.84
  5. Step 5: Solve for x
    x = 229,977,463,710.84/620,904.40
  6. Step 6: Final answer
    x = 370,391.10

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Double scale
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Similar ratio
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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.