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Finding the Fourth Proportional to 873,607.64, 1,205,628.17 and 524,854.73

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Solution

The fourth proportional to 873,607.64, 1,205,628.17 and 524,854.73 is: 724,329.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,607.64 : 1,205,628.17 = 524,854.73 : x
  2. Step 2: Convert to fraction form
    873,607.64/1,205,628.17 = 524,854.73/x
  3. Step 3: Cross multiply
    873,607.64x = 1,205,628.17 × 524,854.73
  4. Step 4: Simplify right side
    873,607.64x = 632,779,642,929.74
  5. Step 5: Solve for x
    x = 632,779,642,929.74/873,607.64
  6. Step 6: Final answer
    x = 724,329.34

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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.