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Finding the Fourth Proportional to 615,186.60, 922,779.90 and 545,202.60

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Solution

The fourth proportional to 615,186.60, 922,779.90 and 545,202.60 is: 817,803.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,186.60 : 922,779.90 = 545,202.60 : x
  2. Step 2: Convert to fraction form
    615,186.60/922,779.90 = 545,202.60/x
  3. Step 3: Cross multiply
    615,186.60x = 922,779.90 × 545,202.60
  4. Step 4: Simplify right side
    615,186.60x = 503,102,000,707.74
  5. Step 5: Solve for x
    x = 503,102,000,707.74/615,186.60
  6. Step 6: Final answer
    x = 817,803.90

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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.