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Finding the Fourth Proportional to 819,953.19, 1,130,798.66 and 514,062.95

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Solution

The fourth proportional to 819,953.19, 1,130,798.66 and 514,062.95 is: 708,944.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,953.19 : 1,130,798.66 = 514,062.95 : x
  2. Step 2: Convert to fraction form
    819,953.19/1,130,798.66 = 514,062.95/x
  3. Step 3: Cross multiply
    819,953.19x = 1,130,798.66 × 514,062.95
  4. Step 4: Simplify right side
    819,953.19x = 581,301,686,791.34
  5. Step 5: Solve for x
    x = 581,301,686,791.34/819,953.19
  6. Step 6: Final answer
    x = 708,944.97

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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.