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Finding the Fourth Proportional to 589,130.40, 883,695.60 and 145,898.40

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Solution

The fourth proportional to 589,130.40, 883,695.60 and 145,898.40 is: 218,847.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,130.40 : 883,695.60 = 145,898.40 : x
  2. Step 2: Convert to fraction form
    589,130.40/883,695.60 = 145,898.40/x
  3. Step 3: Cross multiply
    589,130.40x = 883,695.60 × 145,898.40
  4. Step 4: Simplify right side
    589,130.40x = 128,929,774,127.04
  5. Step 5: Solve for x
    x = 128,929,774,127.04/589,130.40
  6. Step 6: Final answer
    x = 218,847.60

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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.