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Finding the Fourth Proportional to 983,398.01, 1,472,586.71 and 784,009.22

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Solution

The fourth proportional to 983,398.01, 1,472,586.71 and 784,009.22 is: 1,174,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,398.01 : 1,472,586.71 = 784,009.22 : x
  2. Step 2: Convert to fraction form
    983,398.01/1,472,586.71 = 784,009.22/x
  3. Step 3: Cross multiply
    983,398.01x = 1,472,586.71 × 784,009.22
  4. Step 4: Simplify right side
    983,398.01x = 1,154,521,546,606.49
  5. Step 5: Solve for x
    x = 1,154,521,546,606.49/983,398.01
  6. Step 6: Final answer
    x = 1,174,012.50

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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.