Home / 700,623.11-966,931.33-428,870.59

Finding the Fourth Proportional to 700,623.11, 966,931.33 and 428,870.59

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Solution

The fourth proportional to 700,623.11, 966,931.33 and 428,870.59 is: 591,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,623.11 : 966,931.33 = 428,870.59 : x
  2. Step 2: Convert to fraction form
    700,623.11/966,931.33 = 428,870.59/x
  3. Step 3: Cross multiply
    700,623.11x = 966,931.33 × 428,870.59
  4. Step 4: Simplify right side
    700,623.11x = 414,688,412,740.20
  5. Step 5: Solve for x
    x = 414,688,412,740.20/700,623.11
  6. Step 6: Final answer
    x = 591,885.15

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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.