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Finding the Fourth Proportional to 575,999.60, 863,999.40 and 543,340.40

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Solution

The fourth proportional to 575,999.60, 863,999.40 and 543,340.40 is: 815,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,999.60 : 863,999.40 = 543,340.40 : x
  2. Step 2: Convert to fraction form
    575,999.60/863,999.40 = 543,340.40/x
  3. Step 3: Cross multiply
    575,999.60x = 863,999.40 × 543,340.40
  4. Step 4: Simplify right side
    575,999.60x = 469,445,779,595.76
  5. Step 5: Solve for x
    x = 469,445,779,595.76/575,999.60
  6. Step 6: Final answer
    x = 815,010.60

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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.