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Finding the Fourth Proportional to 911,803, 1,258,254.11 and 524,678.20

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Solution

The fourth proportional to 911,803, 1,258,254.11 and 524,678.20 is: 724,036.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,803 : 1,258,254.11 = 524,678.20 : x
  2. Step 2: Convert to fraction form
    911,803/1,258,254.11 = 524,678.20/x
  3. Step 3: Cross multiply
    911,803x = 1,258,254.11 × 524,678.20
  4. Step 4: Simplify right side
    911,803x = 660,178,501,577.40
  5. Step 5: Solve for x
    x = 660,178,501,577.40/911,803
  6. Step 6: Final answer
    x = 724,036.33

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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.