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Finding the Fourth Proportional to 598,895,938.60, 898,343,907.90 and 511,219,983.40

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Solution

The fourth proportional to 598,895,938.60, 898,343,907.90 and 511,219,983.40 is: 766,829,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,895,938.60 : 898,343,907.90 = 511,219,983.40 : x
  2. Step 2: Convert to fraction form
    598,895,938.60/898,343,907.90 = 511,219,983.40/x
  3. Step 3: Cross multiply
    598,895,938.60x = 898,343,907.90 × 511,219,983.40
  4. Step 4: Simplify right side
    598,895,938.60x = 459,251,357,684,129,088
  5. Step 5: Solve for x
    x = 459,251,357,684,129,088/598,895,938.60
  6. Step 6: Final answer
    x = 766,829,975.10

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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.