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Finding the Fourth Proportional to 782,598,045.60, 1,097,249,695.20 and 782,598,045.60

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Solution

The fourth proportional to 782,598,045.60, 1,097,249,695.20 and 782,598,045.60 is: 1,097,249,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,598,045.60 : 1,097,249,695.20 = 782,598,045.60 : x
  2. Step 2: Convert to fraction form
    782,598,045.60/1,097,249,695.20 = 782,598,045.60/x
  3. Step 3: Cross multiply
    782,598,045.60x = 1,097,249,695.20 × 782,598,045.60
  4. Step 4: Simplify right side
    782,598,045.60x = 858,705,466,998,715,776
  5. Step 5: Solve for x
    x = 858,705,466,998,715,776/782,598,045.60
  6. Step 6: Final answer
    x = 1,097,249,695.20

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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.