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Finding the Fourth Proportional to 555,420.62, 832,501.02 and 255,281.06

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Solution

The fourth proportional to 555,420.62, 832,501.02 and 255,281.06 is: 382,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,420.62 : 832,501.02 = 255,281.06 : x
  2. Step 2: Convert to fraction form
    555,420.62/832,501.02 = 255,281.06/x
  3. Step 3: Cross multiply
    555,420.62x = 832,501.02 × 255,281.06
  4. Step 4: Simplify right side
    555,420.62x = 212,521,742,836.68
  5. Step 5: Solve for x
    x = 212,521,742,836.68/555,420.62
  6. Step 6: Final answer
    x = 382,632.07

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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.