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Finding the Fourth Proportional to 936,283.60, 1,404,425.40 and 576,740.80

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Solution

The fourth proportional to 936,283.60, 1,404,425.40 and 576,740.80 is: 865,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,283.60 : 1,404,425.40 = 576,740.80 : x
  2. Step 2: Convert to fraction form
    936,283.60/1,404,425.40 = 576,740.80/x
  3. Step 3: Cross multiply
    936,283.60x = 1,404,425.40 × 576,740.80
  4. Step 4: Simplify right side
    936,283.60x = 809,989,428,736.32
  5. Step 5: Solve for x
    x = 809,989,428,736.32/936,283.60
  6. Step 6: Final answer
    x = 865,111.20

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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.