Home / 649,981,244.95-896,975,856.61-352,623,487.12

Finding the Fourth Proportional to 649,981,244.95, 896,975,856.61 and 352,623,487.12

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Solution

The fourth proportional to 649,981,244.95, 896,975,856.61 and 352,623,487.12 is: 486,621,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,981,244.95 : 896,975,856.61 = 352,623,487.12 : x
  2. Step 2: Convert to fraction form
    649,981,244.95/896,975,856.61 = 352,623,487.12/x
  3. Step 3: Cross multiply
    649,981,244.95x = 896,975,856.61 × 352,623,487.12
  4. Step 4: Simplify right side
    649,981,244.95x = 316,294,754,417,143,296
  5. Step 5: Solve for x
    x = 316,294,754,417,143,296/649,981,244.95
  6. Step 6: Final answer
    x = 486,621,355.42

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Double scale
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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.