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Finding the Fourth Proportional to 517,643.12, 776,464.64 and 237,160.32

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Solution

The fourth proportional to 517,643.12, 776,464.64 and 237,160.32 is: 355,740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,643.12 : 776,464.64 = 237,160.32 : x
  2. Step 2: Convert to fraction form
    517,643.12/776,464.64 = 237,160.32/x
  3. Step 3: Cross multiply
    517,643.12x = 776,464.64 × 237,160.32
  4. Step 4: Simplify right side
    517,643.12x = 184,146,602,491.09
  5. Step 5: Solve for x
    x = 184,146,602,491.09/517,643.12
  6. Step 6: Final answer
    x = 355,740.46

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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.