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Finding the Fourth Proportional to 578,124.40, 810,203.60 and 578,124.40

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Solution

The fourth proportional to 578,124.40, 810,203.60 and 578,124.40 is: 810,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,124.40 : 810,203.60 = 578,124.40 : x
  2. Step 2: Convert to fraction form
    578,124.40/810,203.60 = 578,124.40/x
  3. Step 3: Cross multiply
    578,124.40x = 810,203.60 × 578,124.40
  4. Step 4: Simplify right side
    578,124.40x = 468,398,470,127.84
  5. Step 5: Solve for x
    x = 468,398,470,127.84/578,124.40
  6. Step 6: Final answer
    x = 810,203.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.