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Finding the Fourth Proportional to 664,509.66, 917,023.34 and 362,703.66

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Solution

The fourth proportional to 664,509.66, 917,023.34 and 362,703.66 is: 500,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,509.66 : 917,023.34 = 362,703.66 : x
  2. Step 2: Convert to fraction form
    664,509.66/917,023.34 = 362,703.66/x
  3. Step 3: Cross multiply
    664,509.66x = 917,023.34 × 362,703.66
  4. Step 4: Simplify right side
    664,509.66x = 332,607,719,909.91
  5. Step 5: Solve for x
    x = 332,607,719,909.91/664,509.66
  6. Step 6: Final answer
    x = 500,531.05

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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.