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Finding the Fourth Proportional to 575,813.70, 857,810.90 and 549,906.06

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Solution

The fourth proportional to 575,813.70, 857,810.90 and 549,906.06 is: 819,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,813.70 : 857,810.90 = 549,906.06 : x
  2. Step 2: Convert to fraction form
    575,813.70/857,810.90 = 549,906.06/x
  3. Step 3: Cross multiply
    575,813.70x = 857,810.90 × 549,906.06
  4. Step 4: Simplify right side
    575,813.70x = 471,715,409,494.52
  5. Step 5: Solve for x
    x = 471,715,409,494.52/575,813.70
  6. Step 6: Final answer
    x = 819,215.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.