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Finding the Fourth Proportional to 589,420.40, 884,130.60 and 352,641.20

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Solution

The fourth proportional to 589,420.40, 884,130.60 and 352,641.20 is: 528,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,420.40 : 884,130.60 = 352,641.20 : x
  2. Step 2: Convert to fraction form
    589,420.40/884,130.60 = 352,641.20/x
  3. Step 3: Cross multiply
    589,420.40x = 884,130.60 × 352,641.20
  4. Step 4: Simplify right side
    589,420.40x = 311,780,875,740.72
  5. Step 5: Solve for x
    x = 311,780,875,740.72/589,420.40
  6. Step 6: Final answer
    x = 528,961.80

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Double scale
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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.