Home / 839,508.18-1,158,487.56-457,526.76

Finding the Fourth Proportional to 839,508.18, 1,158,487.56 and 457,526.76

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Solution

The fourth proportional to 839,508.18, 1,158,487.56 and 457,526.76 is: 631,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,508.18 : 1,158,487.56 = 457,526.76 : x
  2. Step 2: Convert to fraction form
    839,508.18/1,158,487.56 = 457,526.76/x
  3. Step 3: Cross multiply
    839,508.18x = 1,158,487.56 × 457,526.76
  4. Step 4: Simplify right side
    839,508.18x = 530,039,059,827.11
  5. Step 5: Solve for x
    x = 530,039,059,827.11/839,508.18
  6. Step 6: Final answer
    x = 631,368.55

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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.