Home / 669,139.02-923,438.61-382,654.98

Finding the Fourth Proportional to 669,139.02, 923,438.61 and 382,654.98

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Solution

The fourth proportional to 669,139.02, 923,438.61 and 382,654.98 is: 528,079.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,139.02 : 923,438.61 = 382,654.98 : x
  2. Step 2: Convert to fraction form
    669,139.02/923,438.61 = 382,654.98/x
  3. Step 3: Cross multiply
    669,139.02x = 923,438.61 × 382,654.98
  4. Step 4: Simplify right side
    669,139.02x = 353,358,382,840.78
  5. Step 5: Solve for x
    x = 353,358,382,840.78/669,139.02
  6. Step 6: Final answer
    x = 528,079.18

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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.