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Finding the Fourth Proportional to 610,128.28, 915,134.10 and 373,349.08

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Solution

The fourth proportional to 610,128.28, 915,134.10 and 373,349.08 is: 559,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,128.28 : 915,134.10 = 373,349.08 : x
  2. Step 2: Convert to fraction form
    610,128.28/915,134.10 = 373,349.08/x
  3. Step 3: Cross multiply
    610,128.28x = 915,134.10 × 373,349.08
  4. Step 4: Simplify right side
    610,128.28x = 341,664,474,311.63
  5. Step 5: Solve for x
    x = 341,664,474,311.63/610,128.28
  6. Step 6: Final answer
    x = 559,987.93

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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.