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Finding the Fourth Proportional to 564,009.60, 846,014.40 and 438,038.40

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Solution

The fourth proportional to 564,009.60, 846,014.40 and 438,038.40 is: 657,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,009.60 : 846,014.40 = 438,038.40 : x
  2. Step 2: Convert to fraction form
    564,009.60/846,014.40 = 438,038.40/x
  3. Step 3: Cross multiply
    564,009.60x = 846,014.40 × 438,038.40
  4. Step 4: Simplify right side
    564,009.60x = 370,586,794,152.96
  5. Step 5: Solve for x
    x = 370,586,794,152.96/564,009.60
  6. Step 6: Final answer
    x = 657,057.60

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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.