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Finding the Fourth Proportional to 611,730.60, 917,595.90 and 564,491.40

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Solution

The fourth proportional to 611,730.60, 917,595.90 and 564,491.40 is: 846,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,730.60 : 917,595.90 = 564,491.40 : x
  2. Step 2: Convert to fraction form
    611,730.60/917,595.90 = 564,491.40/x
  3. Step 3: Cross multiply
    611,730.60x = 917,595.90 × 564,491.40
  4. Step 4: Simplify right side
    611,730.60x = 517,974,994,225.26
  5. Step 5: Solve for x
    x = 517,974,994,225.26/611,730.60
  6. Step 6: Final answer
    x = 846,737.10

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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.