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Finding the Fourth Proportional to 705,597.16, 973,731 and 383,309.88

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Solution

The fourth proportional to 705,597.16, 973,731 and 383,309.88 is: 528,971.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,597.16 : 973,731 = 383,309.88 : x
  2. Step 2: Convert to fraction form
    705,597.16/973,731 = 383,309.88/x
  3. Step 3: Cross multiply
    705,597.16x = 973,731 × 383,309.88
  4. Step 4: Simplify right side
    705,597.16x = 373,240,712,762.28
  5. Step 5: Solve for x
    x = 373,240,712,762.28/705,597.16
  6. Step 6: Final answer
    x = 528,971.39

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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.