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Finding the Fourth Proportional to 459,769,607.60, 689,654,411.40 and 409,885,012.40

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Solution

The fourth proportional to 459,769,607.60, 689,654,411.40 and 409,885,012.40 is: 614,827,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,769,607.60 : 689,654,411.40 = 409,885,012.40 : x
  2. Step 2: Convert to fraction form
    459,769,607.60/689,654,411.40 = 409,885,012.40/x
  3. Step 3: Cross multiply
    459,769,607.60x = 689,654,411.40 × 409,885,012.40
  4. Step 4: Simplify right side
    459,769,607.60x = 282,679,006,968,403,680
  5. Step 5: Solve for x
    x = 282,679,006,968,403,680/459,769,607.60
  6. Step 6: Final answer
    x = 614,827,518.60

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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.