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Finding the Fourth Proportional to 585,389.78, 877,454.74 and 382,909.64

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Solution

The fourth proportional to 585,389.78, 877,454.74 and 382,909.64 is: 573,952.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,389.78 : 877,454.74 = 382,909.64 : x
  2. Step 2: Convert to fraction form
    585,389.78/877,454.74 = 382,909.64/x
  3. Step 3: Cross multiply
    585,389.78x = 877,454.74 × 382,909.64
  4. Step 4: Simplify right side
    585,389.78x = 335,985,878,609.69
  5. Step 5: Solve for x
    x = 335,985,878,609.69/585,389.78
  6. Step 6: Final answer
    x = 573,952.42

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Double scale
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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.