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Finding the Fourth Proportional to 563,055.68, 777,017.04 and 308,411.12

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Solution

The fourth proportional to 563,055.68, 777,017.04 and 308,411.12 is: 425,607.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,055.68 : 777,017.04 = 308,411.12 : x
  2. Step 2: Convert to fraction form
    563,055.68/777,017.04 = 308,411.12/x
  3. Step 3: Cross multiply
    563,055.68x = 777,017.04 × 308,411.12
  4. Step 4: Simplify right side
    563,055.68x = 239,640,695,565.49
  5. Step 5: Solve for x
    x = 239,640,695,565.49/563,055.68
  6. Step 6: Final answer
    x = 425,607.46

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Double scale
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Similar ratio
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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.