Home / 864,044.40-1,296,066.60-528,121.20

Finding the Fourth Proportional to 864,044.40, 1,296,066.60 and 528,121.20

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Solution

The fourth proportional to 864,044.40, 1,296,066.60 and 528,121.20 is: 792,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,044.40 : 1,296,066.60 = 528,121.20 : x
  2. Step 2: Convert to fraction form
    864,044.40/1,296,066.60 = 528,121.20/x
  3. Step 3: Cross multiply
    864,044.40x = 1,296,066.60 × 528,121.20
  4. Step 4: Simplify right side
    864,044.40x = 684,480,248,071.92
  5. Step 5: Solve for x
    x = 684,480,248,071.92/864,044.40
  6. Step 6: Final answer
    x = 792,181.80

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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.