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Finding the Fourth Proportional to 784,703.87, 1,082,854.41 and 435,866.87

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Solution

The fourth proportional to 784,703.87, 1,082,854.41 and 435,866.87 is: 601,475.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,703.87 : 1,082,854.41 = 435,866.87 : x
  2. Step 2: Convert to fraction form
    784,703.87/1,082,854.41 = 435,866.87/x
  3. Step 3: Cross multiply
    784,703.87x = 1,082,854.41 × 435,866.87
  4. Step 4: Simplify right side
    784,703.87x = 471,980,363,425.03
  5. Step 5: Solve for x
    x = 471,980,363,425.03/784,703.87
  6. Step 6: Final answer
    x = 601,475.77

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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.