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Finding the Fourth Proportional to 612,062.80, 918,094.20 and 598,940.80

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Solution

The fourth proportional to 612,062.80, 918,094.20 and 598,940.80 is: 898,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,062.80 : 918,094.20 = 598,940.80 : x
  2. Step 2: Convert to fraction form
    612,062.80/918,094.20 = 598,940.80/x
  3. Step 3: Cross multiply
    612,062.80x = 918,094.20 × 598,940.80
  4. Step 4: Simplify right side
    612,062.80x = 549,884,074,623.36
  5. Step 5: Solve for x
    x = 549,884,074,623.36/612,062.80
  6. Step 6: Final answer
    x = 898,411.20

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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.