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Finding the Fourth Proportional to 575,339.40, 863,009.10 and 201,400.20

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Solution

The fourth proportional to 575,339.40, 863,009.10 and 201,400.20 is: 302,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,339.40 : 863,009.10 = 201,400.20 : x
  2. Step 2: Convert to fraction form
    575,339.40/863,009.10 = 201,400.20/x
  3. Step 3: Cross multiply
    575,339.40x = 863,009.10 × 201,400.20
  4. Step 4: Simplify right side
    575,339.40x = 173,810,205,341.82
  5. Step 5: Solve for x
    x = 173,810,205,341.82/575,339.40
  6. Step 6: Final answer
    x = 302,100.30

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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.