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Finding the Fourth Proportional to 714,764,688.59, 986,069,301 and 446,374,572.80

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Solution

The fourth proportional to 714,764,688.59, 986,069,301 and 446,374,572.80 is: 615,805,830.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,764,688.59 : 986,069,301 = 446,374,572.80 : x
  2. Step 2: Convert to fraction form
    714,764,688.59/986,069,301 = 446,374,572.80/x
  3. Step 3: Cross multiply
    714,764,688.59x = 986,069,301 × 446,374,572.80
  4. Step 4: Simplify right side
    714,764,688.59x = 440,156,262,980,139,264
  5. Step 5: Solve for x
    x = 440,156,262,980,139,264/714,764,688.59
  6. Step 6: Final answer
    x = 615,805,830.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.