Home / 649,569.79-974,070.37-345,899.98

Finding the Fourth Proportional to 649,569.79, 974,070.37 and 345,899.98

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Solution

The fourth proportional to 649,569.79, 974,070.37 and 345,899.98 is: 518,698.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,569.79 : 974,070.37 = 345,899.98 : x
  2. Step 2: Convert to fraction form
    649,569.79/974,070.37 = 345,899.98/x
  3. Step 3: Cross multiply
    649,569.79x = 974,070.37 × 345,899.98
  4. Step 4: Simplify right side
    649,569.79x = 336,930,921,501.59
  5. Step 5: Solve for x
    x = 336,930,921,501.59/649,569.79
  6. Step 6: Final answer
    x = 518,698.57

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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.