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Finding the Fourth Proportional to 607,891.80, 910,853.55 and 572,462.40

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Solution

The fourth proportional to 607,891.80, 910,853.55 and 572,462.40 is: 857,766.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,891.80 : 910,853.55 = 572,462.40 : x
  2. Step 2: Convert to fraction form
    607,891.80/910,853.55 = 572,462.40/x
  3. Step 3: Cross multiply
    607,891.80x = 910,853.55 × 572,462.40
  4. Step 4: Simplify right side
    607,891.80x = 521,429,409,281.52
  5. Step 5: Solve for x
    x = 521,429,409,281.52/607,891.80
  6. Step 6: Final answer
    x = 857,766.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.