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Finding the Fourth Proportional to 545,828.40, 818,742.60 and 347,030.10

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Solution

The fourth proportional to 545,828.40, 818,742.60 and 347,030.10 is: 520,545.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,828.40 : 818,742.60 = 347,030.10 : x
  2. Step 2: Convert to fraction form
    545,828.40/818,742.60 = 347,030.10/x
  3. Step 3: Cross multiply
    545,828.40x = 818,742.60 × 347,030.10
  4. Step 4: Simplify right side
    545,828.40x = 284,128,326,352.26
  5. Step 5: Solve for x
    x = 284,128,326,352.26/545,828.40
  6. Step 6: Final answer
    x = 520,545.15

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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.