Home / 685,350.90-946,364.85-430,784.10

Finding the Fourth Proportional to 685,350.90, 946,364.85 and 430,784.10

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Solution

The fourth proportional to 685,350.90, 946,364.85 and 430,784.10 is: 594,847.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,350.90 : 946,364.85 = 430,784.10 : x
  2. Step 2: Convert to fraction form
    685,350.90/946,364.85 = 430,784.10/x
  3. Step 3: Cross multiply
    685,350.90x = 946,364.85 × 430,784.10
  4. Step 4: Simplify right side
    685,350.90x = 407,678,930,178.89
  5. Step 5: Solve for x
    x = 407,678,930,178.89/685,350.90
  6. Step 6: Final answer
    x = 594,847.00

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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.