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Finding the Fourth Proportional to 688,967.84, 950,807.27 and 383,075.66

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Solution

The fourth proportional to 688,967.84, 950,807.27 and 383,075.66 is: 528,662.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,967.84 : 950,807.27 = 383,075.66 : x
  2. Step 2: Convert to fraction form
    688,967.84/950,807.27 = 383,075.66/x
  3. Step 3: Cross multiply
    688,967.84x = 950,807.27 × 383,075.66
  4. Step 4: Simplify right side
    688,967.84x = 364,231,125,822.76
  5. Step 5: Solve for x
    x = 364,231,125,822.76/688,967.84
  6. Step 6: Final answer
    x = 528,662.01

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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.