Home / 286,526.04-429,640.74-128,618.52

Finding the Fourth Proportional to 286,526.04, 429,640.74 and 128,618.52

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Solution

The fourth proportional to 286,526.04, 429,640.74 and 128,618.52 is: 192,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,526.04 : 429,640.74 = 128,618.52 : x
  2. Step 2: Convert to fraction form
    286,526.04/429,640.74 = 128,618.52/x
  3. Step 3: Cross multiply
    286,526.04x = 429,640.74 × 128,618.52
  4. Step 4: Simplify right side
    286,526.04x = 55,259,756,110.50
  5. Step 5: Solve for x
    x = 55,259,756,110.50/286,526.04
  6. Step 6: Final answer
    x = 192,861.20

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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.