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Finding the Fourth Proportional to 649,782.40, 974,894.88 and 350,291.92

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Solution

The fourth proportional to 649,782.40, 974,894.88 and 350,291.92 is: 525,557.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,782.40 : 974,894.88 = 350,291.92 : x
  2. Step 2: Convert to fraction form
    649,782.40/974,894.88 = 350,291.92/x
  3. Step 3: Cross multiply
    649,782.40x = 974,894.88 × 350,291.92
  4. Step 4: Simplify right side
    649,782.40x = 341,497,799,313.37
  5. Step 5: Solve for x
    x = 341,497,799,313.37/649,782.40
  6. Step 6: Final answer
    x = 525,557.17

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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.