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Finding the Fourth Proportional to 607,042.36, 910,565.70 and 186,318.28

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Solution

The fourth proportional to 607,042.36, 910,565.70 and 186,318.28 is: 279,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,042.36 : 910,565.70 = 186,318.28 : x
  2. Step 2: Convert to fraction form
    607,042.36/910,565.70 = 186,318.28/x
  3. Step 3: Cross multiply
    607,042.36x = 910,565.70 × 186,318.28
  4. Step 4: Simplify right side
    607,042.36x = 169,655,035,051.00
  5. Step 5: Solve for x
    x = 169,655,035,051.00/607,042.36
  6. Step 6: Final answer
    x = 279,478.08

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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.