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Finding the Fourth Proportional to 559,174.56, 767,320.68 and 508,486.56

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Solution

The fourth proportional to 559,174.56, 767,320.68 and 508,486.56 is: 697,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,174.56 : 767,320.68 = 508,486.56 : x
  2. Step 2: Convert to fraction form
    559,174.56/767,320.68 = 508,486.56/x
  3. Step 3: Cross multiply
    559,174.56x = 767,320.68 × 508,486.56
  4. Step 4: Simplify right side
    559,174.56x = 390,172,252,990.06
  5. Step 5: Solve for x
    x = 390,172,252,990.06/559,174.56
  6. Step 6: Final answer
    x = 697,764.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.