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Finding the Fourth Proportional to 649,603.32, 896,615.10 and 520,035.72

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Solution

The fourth proportional to 649,603.32, 896,615.10 and 520,035.72 is: 717,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,603.32 : 896,615.10 = 520,035.72 : x
  2. Step 2: Convert to fraction form
    649,603.32/896,615.10 = 520,035.72/x
  3. Step 3: Cross multiply
    649,603.32x = 896,615.10 × 520,035.72
  4. Step 4: Simplify right side
    649,603.32x = 466,271,879,091.37
  5. Step 5: Solve for x
    x = 466,271,879,091.37/649,603.32
  6. Step 6: Final answer
    x = 717,779.40

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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.