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Finding the Fourth Proportional to 519,594.84, 716,977.65 and 290,164.87

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Solution

The fourth proportional to 519,594.84, 716,977.65 and 290,164.87 is: 400,392.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,594.84 : 716,977.65 = 290,164.87 : x
  2. Step 2: Convert to fraction form
    519,594.84/716,977.65 = 290,164.87/x
  3. Step 3: Cross multiply
    519,594.84x = 716,977.65 × 290,164.87
  4. Step 4: Simplify right side
    519,594.84x = 208,041,726,605.16
  5. Step 5: Solve for x
    x = 208,041,726,605.16/519,594.84
  6. Step 6: Final answer
    x = 400,392.21

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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.