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Finding the Fourth Proportional to 1,137,865,875.80, 1,706,798,813.70 and 745,024,688.60

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Solution

The fourth proportional to 1,137,865,875.80, 1,706,798,813.70 and 745,024,688.60 is: 1,117,537,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,865,875.80 : 1,706,798,813.70 = 745,024,688.60 : x
  2. Step 2: Convert to fraction form
    1,137,865,875.80/1,706,798,813.70 = 745,024,688.60/x
  3. Step 3: Cross multiply
    1,137,865,875.80x = 1,706,798,813.70 × 745,024,688.60
  4. Step 4: Simplify right side
    1,137,865,875.80x = 1,271,607,254,679,692,032
  5. Step 5: Solve for x
    x = 1,271,607,254,679,692,032/1,137,865,875.80
  6. Step 6: Final answer
    x = 1,117,537,032.90

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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.