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Finding the Fourth Proportional to 544,070.80, 816,106.20 and 292,128.40

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Solution

The fourth proportional to 544,070.80, 816,106.20 and 292,128.40 is: 438,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,070.80 : 816,106.20 = 292,128.40 : x
  2. Step 2: Convert to fraction form
    544,070.80/816,106.20 = 292,128.40/x
  3. Step 3: Cross multiply
    544,070.80x = 816,106.20 × 292,128.40
  4. Step 4: Simplify right side
    544,070.80x = 238,407,798,436.08
  5. Step 5: Solve for x
    x = 238,407,798,436.08/544,070.80
  6. Step 6: Final answer
    x = 438,192.60

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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.