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Finding the Fourth Proportional to 504,779.04, 696,632.40 and 289,928.16

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Solution

The fourth proportional to 504,779.04, 696,632.40 and 289,928.16 is: 400,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,779.04 : 696,632.40 = 289,928.16 : x
  2. Step 2: Convert to fraction form
    504,779.04/696,632.40 = 289,928.16/x
  3. Step 3: Cross multiply
    504,779.04x = 696,632.40 × 289,928.16
  4. Step 4: Simplify right side
    504,779.04x = 201,973,349,928.38
  5. Step 5: Solve for x
    x = 201,973,349,928.38/504,779.04
  6. Step 6: Final answer
    x = 400,122.30

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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.