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Finding the Fourth Proportional to 570,155.39, 786,761.01 and 340,666.97

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Solution

The fourth proportional to 570,155.39, 786,761.01 and 340,666.97 is: 470,088.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,155.39 : 786,761.01 = 340,666.97 : x
  2. Step 2: Convert to fraction form
    570,155.39/786,761.01 = 340,666.97/x
  3. Step 3: Cross multiply
    570,155.39x = 786,761.01 × 340,666.97
  4. Step 4: Simplify right side
    570,155.39x = 268,023,489,390.84
  5. Step 5: Solve for x
    x = 268,023,489,390.84/570,155.39
  6. Step 6: Final answer
    x = 470,088.50

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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.