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Finding the Fourth Proportional to 567,000.99, 782,461.01 and 312,352.18

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Solution

The fourth proportional to 567,000.99, 782,461.01 and 312,352.18 is: 431,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,000.99 : 782,461.01 = 312,352.18 : x
  2. Step 2: Convert to fraction form
    567,000.99/782,461.01 = 312,352.18/x
  3. Step 3: Cross multiply
    567,000.99x = 782,461.01 × 312,352.18
  4. Step 4: Simplify right side
    567,000.99x = 244,403,402,238.50
  5. Step 5: Solve for x
    x = 244,403,402,238.50/567,000.99
  6. Step 6: Final answer
    x = 431,045.81

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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.