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Finding the Fourth Proportional to 611,570.10, 917,355.15 and 554,489.40

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Solution

The fourth proportional to 611,570.10, 917,355.15 and 554,489.40 is: 831,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,570.10 : 917,355.15 = 554,489.40 : x
  2. Step 2: Convert to fraction form
    611,570.10/917,355.15 = 554,489.40/x
  3. Step 3: Cross multiply
    611,570.10x = 917,355.15 × 554,489.40
  4. Step 4: Simplify right side
    611,570.10x = 508,663,706,710.41
  5. Step 5: Solve for x
    x = 508,663,706,710.41/611,570.10
  6. Step 6: Final answer
    x = 831,734.10

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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.