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Finding the Fourth Proportional to 590,071.20, 885,106.80 and 401,114.40

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Solution

The fourth proportional to 590,071.20, 885,106.80 and 401,114.40 is: 601,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,071.20 : 885,106.80 = 401,114.40 : x
  2. Step 2: Convert to fraction form
    590,071.20/885,106.80 = 401,114.40/x
  3. Step 3: Cross multiply
    590,071.20x = 885,106.80 × 401,114.40
  4. Step 4: Simplify right side
    590,071.20x = 355,029,083,017.92
  5. Step 5: Solve for x
    x = 355,029,083,017.92/590,071.20
  6. Step 6: Final answer
    x = 601,671.60

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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.