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Finding the Fourth Proportional to 586,934.40, 880,401.60 and 306,998.40

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Solution

The fourth proportional to 586,934.40, 880,401.60 and 306,998.40 is: 460,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,934.40 : 880,401.60 = 306,998.40 : x
  2. Step 2: Convert to fraction form
    586,934.40/880,401.60 = 306,998.40/x
  3. Step 3: Cross multiply
    586,934.40x = 880,401.60 × 306,998.40
  4. Step 4: Simplify right side
    586,934.40x = 270,281,882,557.44
  5. Step 5: Solve for x
    x = 270,281,882,557.44/586,934.40
  6. Step 6: Final answer
    x = 460,497.60

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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.