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Finding the Fourth Proportional to 877,392, 1,210,988.07 and 602,126.46

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Solution

The fourth proportional to 877,392, 1,210,988.07 and 602,126.46 is: 831,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,392 : 1,210,988.07 = 602,126.46 : x
  2. Step 2: Convert to fraction form
    877,392/1,210,988.07 = 602,126.46/x
  3. Step 3: Cross multiply
    877,392x = 1,210,988.07 × 602,126.46
  4. Step 4: Simplify right side
    877,392x = 729,167,959,691.33
  5. Step 5: Solve for x
    x = 729,167,959,691.33/877,392
  6. Step 6: Final answer
    x = 831,062.92

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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.