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Finding the Fourth Proportional to 818,798.17, 1,130,410.35 and 547,325.86

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Solution

The fourth proportional to 818,798.17, 1,130,410.35 and 547,325.86 is: 755,623.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,798.17 : 1,130,410.35 = 547,325.86 : x
  2. Step 2: Convert to fraction form
    818,798.17/1,130,410.35 = 547,325.86/x
  3. Step 3: Cross multiply
    818,798.17x = 1,130,410.35 × 547,325.86
  4. Step 4: Simplify right side
    818,798.17x = 618,702,816,966.65
  5. Step 5: Solve for x
    x = 618,702,816,966.65/818,798.17
  6. Step 6: Final answer
    x = 755,623.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.