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Finding the Fourth Proportional to 1,406,929.05, 1,941,568.88 and 762,349.07

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Solution

The fourth proportional to 1,406,929.05, 1,941,568.88 and 762,349.07 is: 1,052,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,929.05 : 1,941,568.88 = 762,349.07 : x
  2. Step 2: Convert to fraction form
    1,406,929.05/1,941,568.88 = 762,349.07/x
  3. Step 3: Cross multiply
    1,406,929.05x = 1,941,568.88 × 762,349.07
  4. Step 4: Simplify right side
    1,406,929.05x = 1,480,153,236,768.74
  5. Step 5: Solve for x
    x = 1,480,153,236,768.74/1,406,929.05
  6. Step 6: Final answer
    x = 1,052,045.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.