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Finding the Fourth Proportional to 719,066.64, 992,357.28 and 413,240.88

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Solution

The fourth proportional to 719,066.64, 992,357.28 and 413,240.88 is: 570,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,066.64 : 992,357.28 = 413,240.88 : x
  2. Step 2: Convert to fraction form
    719,066.64/992,357.28 = 413,240.88/x
  3. Step 3: Cross multiply
    719,066.64x = 992,357.28 × 413,240.88
  4. Step 4: Simplify right side
    719,066.64x = 410,082,595,661.61
  5. Step 5: Solve for x
    x = 410,082,595,661.61/719,066.64
  6. Step 6: Final answer
    x = 570,298.46

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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.