Home / 916,079.60-1,374,119.40-636,143.60

Finding the Fourth Proportional to 916,079.60, 1,374,119.40 and 636,143.60

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Solution

The fourth proportional to 916,079.60, 1,374,119.40 and 636,143.60 is: 954,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,079.60 : 1,374,119.40 = 636,143.60 : x
  2. Step 2: Convert to fraction form
    916,079.60/1,374,119.40 = 636,143.60/x
  3. Step 3: Cross multiply
    916,079.60x = 1,374,119.40 × 636,143.60
  4. Step 4: Simplify right side
    916,079.60x = 874,137,261,945.84
  5. Step 5: Solve for x
    x = 874,137,261,945.84/916,079.60
  6. Step 6: Final answer
    x = 954,215.40

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Half scale
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Double scale
Find fourth proportional to 916,080.60, 1,374,120.90 and 636,144.60
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.