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Finding the Fourth Proportional to 556,421.70, 834,632.55 and 534,648.90

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Solution

The fourth proportional to 556,421.70, 834,632.55 and 534,648.90 is: 801,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,421.70 : 834,632.55 = 534,648.90 : x
  2. Step 2: Convert to fraction form
    556,421.70/834,632.55 = 534,648.90/x
  3. Step 3: Cross multiply
    556,421.70x = 834,632.55 × 534,648.90
  4. Step 4: Simplify right side
    556,421.70x = 446,235,374,761.70
  5. Step 5: Solve for x
    x = 446,235,374,761.70/556,421.70
  6. Step 6: Final answer
    x = 801,973.35

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Similar ratio
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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.