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Finding the Fourth Proportional to 615,547.80, 923,321.70 and 194,952.60

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Solution

The fourth proportional to 615,547.80, 923,321.70 and 194,952.60 is: 292,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,547.80 : 923,321.70 = 194,952.60 : x
  2. Step 2: Convert to fraction form
    615,547.80/923,321.70 = 194,952.60/x
  3. Step 3: Cross multiply
    615,547.80x = 923,321.70 × 194,952.60
  4. Step 4: Simplify right side
    615,547.80x = 180,003,966,051.42
  5. Step 5: Solve for x
    x = 180,003,966,051.42/615,547.80
  6. Step 6: Final answer
    x = 292,428.90

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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.