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Finding the Fourth Proportional to 404,999.70, 607,499.55 and 375,475.20

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Solution

The fourth proportional to 404,999.70, 607,499.55 and 375,475.20 is: 563,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,999.70 : 607,499.55 = 375,475.20 : x
  2. Step 2: Convert to fraction form
    404,999.70/607,499.55 = 375,475.20/x
  3. Step 3: Cross multiply
    404,999.70x = 607,499.55 × 375,475.20
  4. Step 4: Simplify right side
    404,999.70x = 228,101,015,036.16
  5. Step 5: Solve for x
    x = 228,101,015,036.16/404,999.70
  6. Step 6: Final answer
    x = 563,212.80

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1.5x scale

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.