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Finding the Fourth Proportional to 691,488.32, 954,431.68 and 450,371.84

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Solution

The fourth proportional to 691,488.32, 954,431.68 and 450,371.84 is: 621,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,488.32 : 954,431.68 = 450,371.84 : x
  2. Step 2: Convert to fraction form
    691,488.32/954,431.68 = 450,371.84/x
  3. Step 3: Cross multiply
    691,488.32x = 954,431.68 × 450,371.84
  4. Step 4: Simplify right side
    691,488.32x = 429,849,151,875.89
  5. Step 5: Solve for x
    x = 429,849,151,875.89/691,488.32
  6. Step 6: Final answer
    x = 621,628.94

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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.