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Finding the Fourth Proportional to 705,300.90, 973,315.20 and 403,494.90

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Solution

The fourth proportional to 705,300.90, 973,315.20 and 403,494.90 is: 556,822.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,300.90 : 973,315.20 = 403,494.90 : x
  2. Step 2: Convert to fraction form
    705,300.90/973,315.20 = 403,494.90/x
  3. Step 3: Cross multiply
    705,300.90x = 973,315.20 × 403,494.90
  4. Step 4: Simplify right side
    705,300.90x = 392,727,719,292.48
  5. Step 5: Solve for x
    x = 392,727,719,292.48/705,300.90
  6. Step 6: Final answer
    x = 556,822.94

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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.