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Finding the Fourth Proportional to 868,960,827.60, 1,304,952,895.80 and 460,814,139.60

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Solution

The fourth proportional to 868,960,827.60, 1,304,952,895.80 and 460,814,139.60 is: 692,022,847.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,960,827.60 : 1,304,952,895.80 = 460,814,139.60 : x
  2. Step 2: Convert to fraction form
    868,960,827.60/1,304,952,895.80 = 460,814,139.60/x
  3. Step 3: Cross multiply
    868,960,827.60x = 1,304,952,895.80 × 460,814,139.60
  4. Step 4: Simplify right side
    868,960,827.60x = 601,340,745,896,605,440
  5. Step 5: Solve for x
    x = 601,340,745,896,605,440/868,960,827.60
  6. Step 6: Final answer
    x = 692,022,847.06

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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.