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Finding the Fourth Proportional to 705,193.80, 973,167.44 and 403,387.80

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Solution

The fourth proportional to 705,193.80, 973,167.44 and 403,387.80 is: 556,675.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,193.80 : 973,167.44 = 403,387.80 : x
  2. Step 2: Convert to fraction form
    705,193.80/973,167.44 = 403,387.80/x
  3. Step 3: Cross multiply
    705,193.80x = 973,167.44 × 403,387.80
  4. Step 4: Simplify right side
    705,193.80x = 392,563,872,653.23
  5. Step 5: Solve for x
    x = 392,563,872,653.23/705,193.80
  6. Step 6: Final answer
    x = 556,675.16

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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.