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Finding the Fourth Proportional to 890,362, 1,228,722.14 and 546,387.92

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Solution

The fourth proportional to 890,362, 1,228,722.14 and 546,387.92 is: 754,029.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,362 : 1,228,722.14 = 546,387.92 : x
  2. Step 2: Convert to fraction form
    890,362/1,228,722.14 = 546,387.92/x
  3. Step 3: Cross multiply
    890,362x = 1,228,722.14 × 546,387.92
  4. Step 4: Simplify right side
    890,362x = 671,358,934,332.55
  5. Step 5: Solve for x
    x = 671,358,934,332.55/890,362
  6. Step 6: Final answer
    x = 754,029.19

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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.