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Finding the Fourth Proportional to 541,637.60, 812,456.40 and 455,032.40

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Solution

The fourth proportional to 541,637.60, 812,456.40 and 455,032.40 is: 682,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,637.60 : 812,456.40 = 455,032.40 : x
  2. Step 2: Convert to fraction form
    541,637.60/812,456.40 = 455,032.40/x
  3. Step 3: Cross multiply
    541,637.60x = 812,456.40 × 455,032.40
  4. Step 4: Simplify right side
    541,637.60x = 369,693,985,587.36
  5. Step 5: Solve for x
    x = 369,693,985,587.36/541,637.60
  6. Step 6: Final answer
    x = 682,548.60

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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.