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Finding the Fourth Proportional to 624,281.60, 936,422.40 and 499,865.60

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Solution

The fourth proportional to 624,281.60, 936,422.40 and 499,865.60 is: 749,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,281.60 : 936,422.40 = 499,865.60 : x
  2. Step 2: Convert to fraction form
    624,281.60/936,422.40 = 499,865.60/x
  3. Step 3: Cross multiply
    624,281.60x = 936,422.40 × 499,865.60
  4. Step 4: Simplify right side
    624,281.60x = 468,085,344,829.44
  5. Step 5: Solve for x
    x = 468,085,344,829.44/624,281.60
  6. Step 6: Final answer
    x = 749,798.40

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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.