Home / 779,905.60-1,169,858.40-499,969.60

Finding the Fourth Proportional to 779,905.60, 1,169,858.40 and 499,969.60

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Solution

The fourth proportional to 779,905.60, 1,169,858.40 and 499,969.60 is: 749,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,905.60 : 1,169,858.40 = 499,969.60 : x
  2. Step 2: Convert to fraction form
    779,905.60/1,169,858.40 = 499,969.60/x
  3. Step 3: Cross multiply
    779,905.60x = 1,169,858.40 × 499,969.60
  4. Step 4: Simplify right side
    779,905.60x = 584,893,636,304.64
  5. Step 5: Solve for x
    x = 584,893,636,304.64/779,905.60
  6. Step 6: Final answer
    x = 749,954.40

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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.