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Finding the Fourth Proportional to 556,220.40, 834,330.60 and 518,895.60

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Solution

The fourth proportional to 556,220.40, 834,330.60 and 518,895.60 is: 778,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,220.40 : 834,330.60 = 518,895.60 : x
  2. Step 2: Convert to fraction form
    556,220.40/834,330.60 = 518,895.60/x
  3. Step 3: Cross multiply
    556,220.40x = 834,330.60 × 518,895.60
  4. Step 4: Simplify right side
    556,220.40x = 432,930,477,285.36
  5. Step 5: Solve for x
    x = 432,930,477,285.36/556,220.40
  6. Step 6: Final answer
    x = 778,343.40

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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.