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Finding the Fourth Proportional to 705,975.86, 974,253.14 and 383,686.79

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Solution

The fourth proportional to 705,975.86, 974,253.14 and 383,686.79 is: 529,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,975.86 : 974,253.14 = 383,686.79 : x
  2. Step 2: Convert to fraction form
    705,975.86/974,253.14 = 383,686.79/x
  3. Step 3: Cross multiply
    705,975.86x = 974,253.14 × 383,686.79
  4. Step 4: Simplify right side
    705,975.86x = 373,808,053,144.32
  5. Step 5: Solve for x
    x = 373,808,053,144.32/705,975.86
  6. Step 6: Final answer
    x = 529,491.27

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.