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Finding the Fourth Proportional to 577,521.77, 862,052.65 and 509,345.69

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Solution

The fourth proportional to 577,521.77, 862,052.65 and 509,345.69 is: 760,287.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,521.77 : 862,052.65 = 509,345.69 : x
  2. Step 2: Convert to fraction form
    577,521.77/862,052.65 = 509,345.69/x
  3. Step 3: Cross multiply
    577,521.77x = 862,052.65 × 509,345.69
  4. Step 4: Simplify right side
    577,521.77x = 439,082,801,830.58
  5. Step 5: Solve for x
    x = 439,082,801,830.58/577,521.77
  6. Step 6: Final answer
    x = 760,287.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.