Home / 821,640.90-1,232,461.35-551,036.10

Finding the Fourth Proportional to 821,640.90, 1,232,461.35 and 551,036.10

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Solution

The fourth proportional to 821,640.90, 1,232,461.35 and 551,036.10 is: 826,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,640.90 : 1,232,461.35 = 551,036.10 : x
  2. Step 2: Convert to fraction form
    821,640.90/1,232,461.35 = 551,036.10/x
  3. Step 3: Cross multiply
    821,640.90x = 1,232,461.35 × 551,036.10
  4. Step 4: Simplify right side
    821,640.90x = 679,130,695,704.74
  5. Step 5: Solve for x
    x = 679,130,695,704.74/821,640.90
  6. Step 6: Final answer
    x = 826,554.15

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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.