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Finding the Fourth Proportional to 583,269.40, 874,904.10 and 396,645.40

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Solution

The fourth proportional to 583,269.40, 874,904.10 and 396,645.40 is: 594,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,269.40 : 874,904.10 = 396,645.40 : x
  2. Step 2: Convert to fraction form
    583,269.40/874,904.10 = 396,645.40/x
  3. Step 3: Cross multiply
    583,269.40x = 874,904.10 × 396,645.40
  4. Step 4: Simplify right side
    583,269.40x = 347,026,686,706.14
  5. Step 5: Solve for x
    x = 347,026,686,706.14/583,269.40
  6. Step 6: Final answer
    x = 594,968.10

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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.