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Finding the Fourth Proportional to 873,398.04, 1,205,209.58 and 510,758.82

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Solution

The fourth proportional to 873,398.04, 1,205,209.58 and 510,758.82 is: 704,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,398.04 : 1,205,209.58 = 510,758.82 : x
  2. Step 2: Convert to fraction form
    873,398.04/1,205,209.58 = 510,758.82/x
  3. Step 3: Cross multiply
    873,398.04x = 1,205,209.58 × 510,758.82
  4. Step 4: Simplify right side
    873,398.04x = 615,571,420,379.70
  5. Step 5: Solve for x
    x = 615,571,420,379.70/873,398.04
  6. Step 6: Final answer
    x = 704,800.55

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1.5x scale

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.