Home / 715,840.71-1,071,424.59-526,250.88

Finding the Fourth Proportional to 715,840.71, 1,071,424.59 and 526,250.88

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Solution

The fourth proportional to 715,840.71, 1,071,424.59 and 526,250.88 is: 787,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,840.71 : 1,071,424.59 = 526,250.88 : x
  2. Step 2: Convert to fraction form
    715,840.71/1,071,424.59 = 526,250.88/x
  3. Step 3: Cross multiply
    715,840.71x = 1,071,424.59 × 526,250.88
  4. Step 4: Simplify right side
    715,840.71x = 563,838,133,341.14
  5. Step 5: Solve for x
    x = 563,838,133,341.14/715,840.71
  6. Step 6: Final answer
    x = 787,658.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.