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Finding the Fourth Proportional to 533,783.12, 737,448.15 and 447,590.05

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Solution

The fourth proportional to 533,783.12, 737,448.15 and 447,590.05 is: 618,368.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,783.12 : 737,448.15 = 447,590.05 : x
  2. Step 2: Convert to fraction form
    533,783.12/737,448.15 = 447,590.05/x
  3. Step 3: Cross multiply
    533,783.12x = 737,448.15 × 447,590.05
  4. Step 4: Simplify right side
    533,783.12x = 330,074,455,796.20
  5. Step 5: Solve for x
    x = 330,074,455,796.20/533,783.12
  6. Step 6: Final answer
    x = 618,368.11

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.