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Finding the Fourth Proportional to 479,830,853.40, 719,746,280.10 and 479,830,853.40

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Solution

The fourth proportional to 479,830,853.40, 719,746,280.10 and 479,830,853.40 is: 719,746,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,830,853.40 : 719,746,280.10 = 479,830,853.40 : x
  2. Step 2: Convert to fraction form
    479,830,853.40/719,746,280.10 = 479,830,853.40/x
  3. Step 3: Cross multiply
    479,830,853.40x = 719,746,280.10 × 479,830,853.40
  4. Step 4: Simplify right side
    479,830,853.40x = 345,356,471,811,858,432
  5. Step 5: Solve for x
    x = 345,356,471,811,858,432/479,830,853.40
  6. Step 6: Final answer
    x = 719,746,280.10

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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.