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Finding the Fourth Proportional to 637,877.40, 956,816.10 and 194,645.40

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Solution

The fourth proportional to 637,877.40, 956,816.10 and 194,645.40 is: 291,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,877.40 : 956,816.10 = 194,645.40 : x
  2. Step 2: Convert to fraction form
    637,877.40/956,816.10 = 194,645.40/x
  3. Step 3: Cross multiply
    637,877.40x = 956,816.10 × 194,645.40
  4. Step 4: Simplify right side
    637,877.40x = 186,239,852,510.94
  5. Step 5: Solve for x
    x = 186,239,852,510.94/637,877.40
  6. Step 6: Final answer
    x = 291,968.10

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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.