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Finding the Fourth Proportional to 615,087.40, 922,631.10 and 552,879.40

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Solution

The fourth proportional to 615,087.40, 922,631.10 and 552,879.40 is: 829,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,087.40 : 922,631.10 = 552,879.40 : x
  2. Step 2: Convert to fraction form
    615,087.40/922,631.10 = 552,879.40/x
  3. Step 3: Cross multiply
    615,087.40x = 922,631.10 × 552,879.40
  4. Step 4: Simplify right side
    615,087.40x = 510,103,728,989.34
  5. Step 5: Solve for x
    x = 510,103,728,989.34/615,087.40
  6. Step 6: Final answer
    x = 829,319.10

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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.