Home / 864,001.40-1,296,002.10-545,136.80

Finding the Fourth Proportional to 864,001.40, 1,296,002.10 and 545,136.80

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Solution

The fourth proportional to 864,001.40, 1,296,002.10 and 545,136.80 is: 817,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,001.40 : 1,296,002.10 = 545,136.80 : x
  2. Step 2: Convert to fraction form
    864,001.40/1,296,002.10 = 545,136.80/x
  3. Step 3: Cross multiply
    864,001.40x = 1,296,002.10 × 545,136.80
  4. Step 4: Simplify right side
    864,001.40x = 706,498,437,587.28
  5. Step 5: Solve for x
    x = 706,498,437,587.28/864,001.40
  6. Step 6: Final answer
    x = 817,705.20

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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.