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Finding the Fourth Proportional to 524,436.80, 786,655.20 and 483,886.40

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Solution

The fourth proportional to 524,436.80, 786,655.20 and 483,886.40 is: 725,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,436.80 : 786,655.20 = 483,886.40 : x
  2. Step 2: Convert to fraction form
    524,436.80/786,655.20 = 483,886.40/x
  3. Step 3: Cross multiply
    524,436.80x = 786,655.20 × 483,886.40
  4. Step 4: Simplify right side
    524,436.80x = 380,651,752,769.28
  5. Step 5: Solve for x
    x = 380,651,752,769.28/524,436.80
  6. Step 6: Final answer
    x = 725,829.60

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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.