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Finding the Fourth Proportional to 460,878,730.20, 691,318,095.30 and 460,878,730.20

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Solution

The fourth proportional to 460,878,730.20, 691,318,095.30 and 460,878,730.20 is: 691,318,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,878,730.20 : 691,318,095.30 = 460,878,730.20 : x
  2. Step 2: Convert to fraction form
    460,878,730.20/691,318,095.30 = 460,878,730.20/x
  3. Step 3: Cross multiply
    460,878,730.20x = 691,318,095.30 × 460,878,730.20
  4. Step 4: Simplify right side
    460,878,730.20x = 318,613,805,926,146,560
  5. Step 5: Solve for x
    x = 318,613,805,926,146,560/460,878,730.20
  6. Step 6: Final answer
    x = 691,318,095.30

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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.