Home / 991,587.18-1,367,886.62-647,624.62

Finding the Fourth Proportional to 991,587.18, 1,367,886.62 and 647,624.62

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Solution

The fourth proportional to 991,587.18, 1,367,886.62 and 647,624.62 is: 893,393.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,587.18 : 1,367,886.62 = 647,624.62 : x
  2. Step 2: Convert to fraction form
    991,587.18/1,367,886.62 = 647,624.62/x
  3. Step 3: Cross multiply
    991,587.18x = 1,367,886.62 × 647,624.62
  4. Step 4: Simplify right side
    991,587.18x = 885,877,050,679.93
  5. Step 5: Solve for x
    x = 885,877,050,679.93/991,587.18
  6. Step 6: Final answer
    x = 893,393.01

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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.