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Finding the Fourth Proportional to 483,326.40, 724,989.60 and 473,995.20

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Solution

The fourth proportional to 483,326.40, 724,989.60 and 473,995.20 is: 710,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,326.40 : 724,989.60 = 473,995.20 : x
  2. Step 2: Convert to fraction form
    483,326.40/724,989.60 = 473,995.20/x
  3. Step 3: Cross multiply
    483,326.40x = 724,989.60 × 473,995.20
  4. Step 4: Simplify right side
    483,326.40x = 343,641,590,449.92
  5. Step 5: Solve for x
    x = 343,641,590,449.92/483,326.40
  6. Step 6: Final answer
    x = 710,992.80

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Half scale
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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.