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Finding the Fourth Proportional to 658,226.40, 987,339.60 and 606,904.80

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Solution

The fourth proportional to 658,226.40, 987,339.60 and 606,904.80 is: 910,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,226.40 : 987,339.60 = 606,904.80 : x
  2. Step 2: Convert to fraction form
    658,226.40/987,339.60 = 606,904.80/x
  3. Step 3: Cross multiply
    658,226.40x = 987,339.60 × 606,904.80
  4. Step 4: Simplify right side
    658,226.40x = 599,221,142,470.08
  5. Step 5: Solve for x
    x = 599,221,142,470.08/658,226.40
  6. Step 6: Final answer
    x = 910,357.20

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Half scale
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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.