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Finding the Fourth Proportional to 710,590.86, 980,615.43 and 383,903.82

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Solution

The fourth proportional to 710,590.86, 980,615.43 and 383,903.82 is: 529,787.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,590.86 : 980,615.43 = 383,903.82 : x
  2. Step 2: Convert to fraction form
    710,590.86/980,615.43 = 383,903.82/x
  3. Step 3: Cross multiply
    710,590.86x = 980,615.43 × 383,903.82
  4. Step 4: Simplify right side
    710,590.86x = 376,462,009,527.94
  5. Step 5: Solve for x
    x = 376,462,009,527.94/710,590.86
  6. Step 6: Final answer
    x = 529,787.29

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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.