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Finding the Fourth Proportional to 483,407.60, 725,111.40 and 411,868.40

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Solution

The fourth proportional to 483,407.60, 725,111.40 and 411,868.40 is: 617,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,407.60 : 725,111.40 = 411,868.40 : x
  2. Step 2: Convert to fraction form
    483,407.60/725,111.40 = 411,868.40/x
  3. Step 3: Cross multiply
    483,407.60x = 725,111.40 × 411,868.40
  4. Step 4: Simplify right side
    483,407.60x = 298,650,472,139.76
  5. Step 5: Solve for x
    x = 298,650,472,139.76/483,407.60
  6. Step 6: Final answer
    x = 617,802.60

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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.