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Finding the Fourth Proportional to 554,663.20, 831,994.80 and 532,890.40

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Solution

The fourth proportional to 554,663.20, 831,994.80 and 532,890.40 is: 799,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,663.20 : 831,994.80 = 532,890.40 : x
  2. Step 2: Convert to fraction form
    554,663.20/831,994.80 = 532,890.40/x
  3. Step 3: Cross multiply
    554,663.20x = 831,994.80 × 532,890.40
  4. Step 4: Simplify right side
    554,663.20x = 443,362,041,769.92
  5. Step 5: Solve for x
    x = 443,362,041,769.92/554,663.20
  6. Step 6: Final answer
    x = 799,335.60

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Half scale
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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.