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Finding the Fourth Proportional to 706,155.08, 974,256.83 and 400,207.45

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Solution

The fourth proportional to 706,155.08, 974,256.83 and 400,207.45 is: 552,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,155.08 : 974,256.83 = 400,207.45 : x
  2. Step 2: Convert to fraction form
    706,155.08/974,256.83 = 400,207.45/x
  3. Step 3: Cross multiply
    706,155.08x = 974,256.83 × 400,207.45
  4. Step 4: Simplify right side
    706,155.08x = 389,904,841,579.38
  5. Step 5: Solve for x
    x = 389,904,841,579.38/706,155.08
  6. Step 6: Final answer
    x = 552,151.86

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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.