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Finding the Fourth Proportional to 40,838,302.80, 57,216,139.20 and 40,838,302.80

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Solution

The fourth proportional to 40,838,302.80, 57,216,139.20 and 40,838,302.80 is: 57,216,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,838,302.80 : 57,216,139.20 = 40,838,302.80 : x
  2. Step 2: Convert to fraction form
    40,838,302.80/57,216,139.20 = 40,838,302.80/x
  3. Step 3: Cross multiply
    40,838,302.80x = 57,216,139.20 × 40,838,302.80
  4. Step 4: Simplify right side
    40,838,302.80x = 2,336,610,017,696,549.50
  5. Step 5: Solve for x
    x = 2,336,610,017,696,549.50/40,838,302.80
  6. Step 6: Final answer
    x = 57,216,139.20

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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.