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Finding the Fourth Proportional to 679,155.53, 937,189.31 and 373,225.32

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Solution

The fourth proportional to 679,155.53, 937,189.31 and 373,225.32 is: 515,026.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,155.53 : 937,189.31 = 373,225.32 : x
  2. Step 2: Convert to fraction form
    679,155.53/937,189.31 = 373,225.32/x
  3. Step 3: Cross multiply
    679,155.53x = 937,189.31 × 373,225.32
  4. Step 4: Simplify right side
    679,155.53x = 349,782,778,259.20
  5. Step 5: Solve for x
    x = 349,782,778,259.20/679,155.53
  6. Step 6: Final answer
    x = 515,026.04

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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.