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Finding the Fourth Proportional to 723,752.02, 998,758.50 and 417,818.06

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Solution

The fourth proportional to 723,752.02, 998,758.50 and 417,818.06 is: 576,577.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,752.02 : 998,758.50 = 417,818.06 : x
  2. Step 2: Convert to fraction form
    723,752.02/998,758.50 = 417,818.06/x
  3. Step 3: Cross multiply
    723,752.02x = 998,758.50 × 417,818.06
  4. Step 4: Simplify right side
    723,752.02x = 417,299,338,878.51
  5. Step 5: Solve for x
    x = 417,299,338,878.51/723,752.02
  6. Step 6: Final answer
    x = 576,577.79

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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.