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Finding the Fourth Proportional to 564,009.40, 846,129.30 and 190,070.20

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Solution

The fourth proportional to 564,009.40, 846,129.30 and 190,070.20 is: 285,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,009.40 : 846,129.30 = 190,070.20 : x
  2. Step 2: Convert to fraction form
    564,009.40/846,129.30 = 190,070.20/x
  3. Step 3: Cross multiply
    564,009.40x = 846,129.30 × 190,070.20
  4. Step 4: Simplify right side
    564,009.40x = 160,823,965,276.86
  5. Step 5: Solve for x
    x = 160,823,965,276.86/564,009.40
  6. Step 6: Final answer
    x = 285,144.12

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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.