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Finding the Fourth Proportional to 624,187.40, 936,281.10 and 474,888.20

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Solution

The fourth proportional to 624,187.40, 936,281.10 and 474,888.20 is: 712,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,187.40 : 936,281.10 = 474,888.20 : x
  2. Step 2: Convert to fraction form
    624,187.40/936,281.10 = 474,888.20/x
  3. Step 3: Cross multiply
    624,187.40x = 936,281.10 × 474,888.20
  4. Step 4: Simplify right side
    624,187.40x = 444,628,846,273.02
  5. Step 5: Solve for x
    x = 444,628,846,273.02/624,187.40
  6. Step 6: Final answer
    x = 712,332.30

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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.