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Finding the Fourth Proportional to 710,823, 1,066,421.24 and 255,460.22

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Solution

The fourth proportional to 710,823, 1,066,421.24 and 255,460.22 is: 383,257.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,823 : 1,066,421.24 = 255,460.22 : x
  2. Step 2: Convert to fraction form
    710,823/1,066,421.24 = 255,460.22/x
  3. Step 3: Cross multiply
    710,823x = 1,066,421.24 × 255,460.22
  4. Step 4: Simplify right side
    710,823x = 272,428,204,583.07
  5. Step 5: Solve for x
    x = 272,428,204,583.07/710,823
  6. Step 6: Final answer
    x = 383,257.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.