Home / 864,018.90-1,296,028.35-528,095.70

Finding the Fourth Proportional to 864,018.90, 1,296,028.35 and 528,095.70

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Solution

The fourth proportional to 864,018.90, 1,296,028.35 and 528,095.70 is: 792,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,018.90 : 1,296,028.35 = 528,095.70 : x
  2. Step 2: Convert to fraction form
    864,018.90/1,296,028.35 = 528,095.70/x
  3. Step 3: Cross multiply
    864,018.90x = 1,296,028.35 × 528,095.70
  4. Step 4: Simplify right side
    864,018.90x = 684,426,998,713.10
  5. Step 5: Solve for x
    x = 684,426,998,713.10/864,018.90
  6. Step 6: Final answer
    x = 792,143.55

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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.