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Finding the Fourth Proportional to 1,068,578, 1,474,637.64 and 615,898.16

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Solution

The fourth proportional to 1,068,578, 1,474,637.64 and 615,898.16 is: 849,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,578 : 1,474,637.64 = 615,898.16 : x
  2. Step 2: Convert to fraction form
    1,068,578/1,474,637.64 = 615,898.16/x
  3. Step 3: Cross multiply
    1,068,578x = 1,474,637.64 × 615,898.16
  4. Step 4: Simplify right side
    1,068,578x = 908,226,609,142.74
  5. Step 5: Solve for x
    x = 908,226,609,142.74/1,068,578
  6. Step 6: Final answer
    x = 849,939.46

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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.