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Finding the Fourth Proportional to 564,688.40, 847,032.60 and 190,711.40

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Solution

The fourth proportional to 564,688.40, 847,032.60 and 190,711.40 is: 286,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,688.40 : 847,032.60 = 190,711.40 : x
  2. Step 2: Convert to fraction form
    564,688.40/847,032.60 = 190,711.40/x
  3. Step 3: Cross multiply
    564,688.40x = 847,032.60 × 190,711.40
  4. Step 4: Simplify right side
    564,688.40x = 161,538,772,991.64
  5. Step 5: Solve for x
    x = 161,538,772,991.64/564,688.40
  6. Step 6: Final answer
    x = 286,067.10

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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.