Home / 691,837.70-1,038,193.95-407,527.70

Finding the Fourth Proportional to 691,837.70, 1,038,193.95 and 407,527.70

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Solution

The fourth proportional to 691,837.70, 1,038,193.95 and 407,527.70 is: 611,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,837.70 : 1,038,193.95 = 407,527.70 : x
  2. Step 2: Convert to fraction form
    691,837.70/1,038,193.95 = 407,527.70/x
  3. Step 3: Cross multiply
    691,837.70x = 1,038,193.95 × 407,527.70
  4. Step 4: Simplify right side
    691,837.70x = 423,092,792,597.42
  5. Step 5: Solve for x
    x = 423,092,792,597.42/691,837.70
  6. Step 6: Final answer
    x = 611,549.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.