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Finding the Fourth Proportional to 722,686.04, 997,774.76 and 464,678.88

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Solution

The fourth proportional to 722,686.04, 997,774.76 and 464,678.88 is: 641,557.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,686.04 : 997,774.76 = 464,678.88 : x
  2. Step 2: Convert to fraction form
    722,686.04/997,774.76 = 464,678.88/x
  3. Step 3: Cross multiply
    722,686.04x = 997,774.76 × 464,678.88
  4. Step 4: Simplify right side
    722,686.04x = 463,644,857,969.07
  5. Step 5: Solve for x
    x = 463,644,857,969.07/722,686.04
  6. Step 6: Final answer
    x = 641,557.79

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.