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Finding the Fourth Proportional to 851,023.16, 1,174,420.16 and 469,064.60

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Solution

The fourth proportional to 851,023.16, 1,174,420.16 and 469,064.60 is: 647,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,023.16 : 1,174,420.16 = 469,064.60 : x
  2. Step 2: Convert to fraction form
    851,023.16/1,174,420.16 = 469,064.60/x
  3. Step 3: Cross multiply
    851,023.16x = 1,174,420.16 × 469,064.60
  4. Step 4: Simplify right side
    851,023.16x = 550,878,922,582.34
  5. Step 5: Solve for x
    x = 550,878,922,582.34/851,023.16
  6. Step 6: Final answer
    x = 647,313.67

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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.