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Finding the Fourth Proportional to 215,834,934.80, 302,849,153.20 and 215,834,934.80

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Solution

The fourth proportional to 215,834,934.80, 302,849,153.20 and 215,834,934.80 is: 302,849,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,834,934.80 : 302,849,153.20 = 215,834,934.80 : x
  2. Step 2: Convert to fraction form
    215,834,934.80/302,849,153.20 = 215,834,934.80/x
  3. Step 3: Cross multiply
    215,834,934.80x = 302,849,153.20 × 215,834,934.80
  4. Step 4: Simplify right side
    215,834,934.80x = 65,365,427,235,157,216
  5. Step 5: Solve for x
    x = 65,365,427,235,157,216/215,834,934.80
  6. Step 6: Final answer
    x = 302,849,153.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.