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Finding the Fourth Proportional to 761,792.33, 1,051,266.71 and 417,622.01

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Solution

The fourth proportional to 761,792.33, 1,051,266.71 and 417,622.01 is: 576,314.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,792.33 : 1,051,266.71 = 417,622.01 : x
  2. Step 2: Convert to fraction form
    761,792.33/1,051,266.71 = 417,622.01/x
  3. Step 3: Cross multiply
    761,792.33x = 1,051,266.71 × 417,622.01
  4. Step 4: Simplify right side
    761,792.33x = 439,032,109,131.84
  5. Step 5: Solve for x
    x = 439,032,109,131.84/761,792.33
  6. Step 6: Final answer
    x = 576,314.69

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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.