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Finding the Fourth Proportional to 553,344.20, 830,016.30 and 530,016.20

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Solution

The fourth proportional to 553,344.20, 830,016.30 and 530,016.20 is: 795,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,344.20 : 830,016.30 = 530,016.20 : x
  2. Step 2: Convert to fraction form
    553,344.20/830,016.30 = 530,016.20/x
  3. Step 3: Cross multiply
    553,344.20x = 830,016.30 × 530,016.20
  4. Step 4: Simplify right side
    553,344.20x = 439,922,085,264.06
  5. Step 5: Solve for x
    x = 439,922,085,264.06/553,344.20
  6. Step 6: Final answer
    x = 795,024.30

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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.