Home / 909,339.90-1,254,886.47-527,590.14

Finding the Fourth Proportional to 909,339.90, 1,254,886.47 and 527,590.14

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Solution

The fourth proportional to 909,339.90, 1,254,886.47 and 527,590.14 is: 728,072.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,339.90 : 1,254,886.47 = 527,590.14 : x
  2. Step 2: Convert to fraction form
    909,339.90/1,254,886.47 = 527,590.14/x
  3. Step 3: Cross multiply
    909,339.90x = 1,254,886.47 × 527,590.14
  4. Step 4: Simplify right side
    909,339.90x = 662,065,728,391.41
  5. Step 5: Solve for x
    x = 662,065,728,391.41/909,339.90
  6. Step 6: Final answer
    x = 728,072.89

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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.