Home / 921,196,545.88-1,271,109,178.80-524,668,984.75

Finding the Fourth Proportional to 921,196,545.88, 1,271,109,178.80 and 524,668,984.75

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Solution

The fourth proportional to 921,196,545.88, 1,271,109,178.80 and 524,668,984.75 is: 723,962,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,196,545.88 : 1,271,109,178.80 = 524,668,984.75 : x
  2. Step 2: Convert to fraction form
    921,196,545.88/1,271,109,178.80 = 524,668,984.75/x
  3. Step 3: Cross multiply
    921,196,545.88x = 1,271,109,178.80 × 524,668,984.75
  4. Step 4: Simplify right side
    921,196,545.88x = 666,911,562,347,402,240
  5. Step 5: Solve for x
    x = 666,911,562,347,402,240/921,196,545.88
  6. Step 6: Final answer
    x = 723,962,291.58

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Double scale
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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.