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Finding the Fourth Proportional to 575,425,710.80, 863,138,566.20 and 522,706,763.60

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Solution

The fourth proportional to 575,425,710.80, 863,138,566.20 and 522,706,763.60 is: 784,060,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,425,710.80 : 863,138,566.20 = 522,706,763.60 : x
  2. Step 2: Convert to fraction form
    575,425,710.80/863,138,566.20 = 522,706,763.60/x
  3. Step 3: Cross multiply
    575,425,710.80x = 863,138,566.20 × 522,706,763.60
  4. Step 4: Simplify right side
    575,425,710.80x = 451,168,366,476,746,368
  5. Step 5: Solve for x
    x = 451,168,366,476,746,368/575,425,710.80
  6. Step 6: Final answer
    x = 784,060,145.40

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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.