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Finding the Fourth Proportional to 974,479,240.80, 1,461,718,861.20 and 744,896,728.80

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Solution

The fourth proportional to 974,479,240.80, 1,461,718,861.20 and 744,896,728.80 is: 1,117,345,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,479,240.80 : 1,461,718,861.20 = 744,896,728.80 : x
  2. Step 2: Convert to fraction form
    974,479,240.80/1,461,718,861.20 = 744,896,728.80/x
  3. Step 3: Cross multiply
    974,479,240.80x = 1,461,718,861.20 × 744,896,728.80
  4. Step 4: Simplify right side
    974,479,240.80x = 1,088,829,598,133,141,248
  5. Step 5: Solve for x
    x = 1,088,829,598,133,141,248/974,479,240.80
  6. Step 6: Final answer
    x = 1,117,345,093.20

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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.