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Finding the Fourth Proportional to 705,973.02, 974,249.22 and 383,683.98

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Solution

The fourth proportional to 705,973.02, 974,249.22 and 383,683.98 is: 529,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,973.02 : 974,249.22 = 383,683.98 : x
  2. Step 2: Convert to fraction form
    705,973.02/974,249.22 = 383,683.98/x
  3. Step 3: Cross multiply
    705,973.02x = 974,249.22 × 383,683.98
  4. Step 4: Simplify right side
    705,973.02x = 373,803,818,241.50
  5. Step 5: Solve for x
    x = 373,803,818,241.50/705,973.02
  6. Step 6: Final answer
    x = 529,487.40

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Double scale
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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.