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Finding the Fourth Proportional to 575,237.60, 862,856.40 and 519,250.40

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Solution

The fourth proportional to 575,237.60, 862,856.40 and 519,250.40 is: 778,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,237.60 : 862,856.40 = 519,250.40 : x
  2. Step 2: Convert to fraction form
    575,237.60/862,856.40 = 519,250.40/x
  3. Step 3: Cross multiply
    575,237.60x = 862,856.40 × 519,250.40
  4. Step 4: Simplify right side
    575,237.60x = 448,038,530,842.56
  5. Step 5: Solve for x
    x = 448,038,530,842.56/575,237.60
  6. Step 6: Final answer
    x = 778,875.60

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Similar ratio
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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.