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Finding the Fourth Proportional to 706,390.40, 974,804.96 and 384,097.68

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Solution

The fourth proportional to 706,390.40, 974,804.96 and 384,097.68 is: 530,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,390.40 : 974,804.96 = 384,097.68 : x
  2. Step 2: Convert to fraction form
    706,390.40/974,804.96 = 384,097.68/x
  3. Step 3: Cross multiply
    706,390.40x = 974,804.96 × 384,097.68
  4. Step 4: Simplify right side
    706,390.40x = 374,420,323,588.49
  5. Step 5: Solve for x
    x = 374,420,323,588.49/706,390.40
  6. Step 6: Final answer
    x = 530,047.30

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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.