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Finding the Fourth Proportional to 767,652.71, 1,059,357.65 and 423,510.03

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Solution

The fourth proportional to 767,652.71, 1,059,357.65 and 423,510.03 is: 584,442.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,652.71 : 1,059,357.65 = 423,510.03 : x
  2. Step 2: Convert to fraction form
    767,652.71/1,059,357.65 = 423,510.03/x
  3. Step 3: Cross multiply
    767,652.71x = 1,059,357.65 × 423,510.03
  4. Step 4: Simplify right side
    767,652.71x = 448,648,588,014.68
  5. Step 5: Solve for x
    x = 448,648,588,014.68/767,652.71
  6. Step 6: Final answer
    x = 584,442.14

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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.