Home / 1,103,393.60-1,655,090.40-438,545.60

Finding the Fourth Proportional to 1,103,393.60, 1,655,090.40 and 438,545.60

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Solution

The fourth proportional to 1,103,393.60, 1,655,090.40 and 438,545.60 is: 657,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,393.60 : 1,655,090.40 = 438,545.60 : x
  2. Step 2: Convert to fraction form
    1,103,393.60/1,655,090.40 = 438,545.60/x
  3. Step 3: Cross multiply
    1,103,393.60x = 1,655,090.40 × 438,545.60
  4. Step 4: Simplify right side
    1,103,393.60x = 725,832,612,522.24
  5. Step 5: Solve for x
    x = 725,832,612,522.24/1,103,393.60
  6. Step 6: Final answer
    x = 657,818.40

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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.