Home / 935,686.50-1,291,168.88-553,646.34

Finding the Fourth Proportional to 935,686.50, 1,291,168.88 and 553,646.34

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Solution

The fourth proportional to 935,686.50, 1,291,168.88 and 553,646.34 is: 763,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,686.50 : 1,291,168.88 = 553,646.34 : x
  2. Step 2: Convert to fraction form
    935,686.50/1,291,168.88 = 553,646.34/x
  3. Step 3: Cross multiply
    935,686.50x = 1,291,168.88 × 553,646.34
  4. Step 4: Simplify right side
    935,686.50x = 714,850,924,733.90
  5. Step 5: Solve for x
    x = 714,850,924,733.90/935,686.50
  6. Step 6: Final answer
    x = 763,985.51

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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.