Home / 1,656,904.86-2,286,541.98-921,869.76

Finding the Fourth Proportional to 1,656,904.86, 2,286,541.98 and 921,869.76

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Solution

The fourth proportional to 1,656,904.86, 2,286,541.98 and 921,869.76 is: 1,272,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656,904.86 : 2,286,541.98 = 921,869.76 : x
  2. Step 2: Convert to fraction form
    1,656,904.86/2,286,541.98 = 921,869.76/x
  3. Step 3: Cross multiply
    1,656,904.86x = 2,286,541.98 × 921,869.76
  4. Step 4: Simplify right side
    1,656,904.86x = 2,107,893,906,332.53
  5. Step 5: Solve for x
    x = 2,107,893,906,332.53/1,656,904.86
  6. Step 6: Final answer
    x = 1,272,187.65

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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.