Home / 864,020.90-1,296,031.35-528,097.70

Finding the Fourth Proportional to 864,020.90, 1,296,031.35 and 528,097.70

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Solution

The fourth proportional to 864,020.90, 1,296,031.35 and 528,097.70 is: 792,146.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,020.90 : 1,296,031.35 = 528,097.70 : x
  2. Step 2: Convert to fraction form
    864,020.90/1,296,031.35 = 528,097.70/x
  3. Step 3: Cross multiply
    864,020.90x = 1,296,031.35 × 528,097.70
  4. Step 4: Simplify right side
    864,020.90x = 684,431,175,062.90
  5. Step 5: Solve for x
    x = 684,431,175,062.90/864,020.90
  6. Step 6: Final answer
    x = 792,146.55

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Double scale
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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.